diff --git a/src/loc/lcl/chs/diagnosticMessages/diagnosticMessages.generated.json.lcl b/src/loc/lcl/chs/diagnosticMessages/diagnosticMessages.generated.json.lcl
index 03965fb2b07..31ccdc9e17a 100644
--- a/src/loc/lcl/chs/diagnosticMessages/diagnosticMessages.generated.json.lcl
+++ b/src/loc/lcl/chs/diagnosticMessages/diagnosticMessages.generated.json.lcl
@@ -144,30 +144,45 @@
       <Item ItemId=";A_computed_property_name_in_a_class_property_declaration_must_refer_to_an_expression_whose_type_is_a_1166" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A computed property name in a class property declaration must refer to an expression whose type is a literal type or a 'unique symbol' type.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[类属性声明中的计算属性名称必须引用类型为文本类型或“唯一符号”类型的表达式。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";A_computed_property_name_in_a_method_overload_must_refer_to_an_expression_whose_type_is_a_literal_ty_1168" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A computed property name in a method overload must refer to an expression whose type is a literal type or a 'unique symbol' type.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[方法重载中的计算属性名称必须引用类型为文本类型或“唯一符号”类型的表达式。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";A_computed_property_name_in_a_type_literal_must_refer_to_an_expression_whose_type_is_a_literal_type__1170" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A computed property name in a type literal must refer to an expression whose type is a literal type or a 'unique symbol' type.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[类型文本中的计算属性名称必须引用类型为文本类型或“唯一符号”类型的表达式。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";A_computed_property_name_in_an_ambient_context_must_refer_to_an_expression_whose_type_is_a_literal_t_1165" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A computed property name in an ambient context must refer to an expression whose type is a literal type or a 'unique symbol' type.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[环境上下文中的计算属性名称必须引用类型为文本类型或“唯一符号”类型的表达式。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";A_computed_property_name_in_an_interface_must_refer_to_an_expression_whose_type_is_a_literal_type_or_1169" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A computed property name in an interface must refer to an expression whose type is a literal type or a 'unique symbol' type.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[接口中的计算属性名称必须引用必须引用类型为文本类型或“唯一符号”的表达式。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -291,6 +306,12 @@
         </Str>
         <Disp Icon="Str" />
       </Item>
+      <Item ItemId=";A_definite_assignment_assertion_is_not_permitted_in_this_context_1255" ItemType="0" PsrId="306" Leaf="true">
+        <Str Cat="Text">
+          <Val><![CDATA[A definite assignment assertion '!' is not permitted in this context.]]></Val>
+        </Str>
+        <Disp Icon="Str" />
+      </Item>
       <Item ItemId=";A_destructuring_declaration_must_have_an_initializer_1182" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A destructuring declaration must have an initializer.]]></Val>
@@ -507,12 +528,18 @@
       <Item ItemId=";A_property_of_a_class_whose_type_is_a_unique_symbol_type_must_be_both_static_and_readonly_1331" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A property of a class whose type is a 'unique symbol' type must be both 'static' and 'readonly'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[类型为“唯一符号”的类的属性必须同时为“静态”和“只读”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";A_property_of_an_interface_or_type_literal_whose_type_is_a_unique_symbol_type_must_be_readonly_1330" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A property of an interface or type literal whose type is a 'unique symbol' type must be 'readonly'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[类型为“唯一符号”的接口或类型文本的属性必须是“只读”]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -765,6 +792,9 @@
       <Item ItemId=";A_variable_whose_type_is_a_unique_symbol_type_must_be_const_1332" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[A variable whose type is a 'unique symbol' type must be 'const'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[类型为“唯一符号”的变量必须是“常量”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -2583,6 +2613,9 @@
       <Item ItemId=";Duplicate_declaration_0_2718" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Duplicate declaration '{0}'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[重复声明“{0}”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -2796,6 +2829,15 @@
         </Str>
         <Disp Icon="Str" />
       </Item>
+      <Item ItemId=";Enable_strict_checking_of_property_initialization_in_classes_6187" ItemType="0" PsrId="306" Leaf="true">
+        <Str Cat="Text">
+          <Val><![CDATA[Enable strict checking of property initialization in classes.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[启用类中属性初始化的严格检查。]]></Val>
+          </Tgt>
+        </Str>
+        <Disp Icon="Str" />
+      </Item>
       <Item ItemId=";Enable_strict_null_checks_6113" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Enable strict null checks.]]></Val>
@@ -2937,6 +2979,9 @@
       <Item ItemId=";Expected_0_arguments_but_got_1_or_more_2556" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Expected {0} arguments, but got {1} or more.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[应有 {0} 个参数，但获得的数量大于等于 {1}。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -2970,6 +3015,9 @@
       <Item ItemId=";Expected_at_least_0_arguments_but_got_1_or_more_2557" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Expected at least {0} arguments, but got {1} or more.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[应有至少 {0} 个参数，但获得的数量大于等于 {1}。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -4506,12 +4554,18 @@
       <Item ItemId=";Method_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2_4101" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Method '{0}' of exported interface has or is using name '{1}' from private module '{2}'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[导出接口的方法“{0}”具有或正在使用私有模块“{2}”中的名称“{1}”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";Method_0_of_exported_interface_has_or_is_using_private_name_1_4102" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Method '{0}' of exported interface has or is using private name '{1}'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[导出接口的方法“{0}”具有或正在使用专用名称“{1}”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -5439,6 +5493,15 @@
         </Str>
         <Disp Icon="Str" />
       </Item>
+      <Item ItemId=";Property_0_has_no_initializer_and_is_not_definitely_assigned_in_the_constructor_2564" ItemType="0" PsrId="306" Leaf="true">
+        <Str Cat="Text">
+          <Val><![CDATA[Property '{0}' has no initializer and is not definitely assigned in the constructor.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[属性“{0}”没有初始化表达式，且未在构造函数中明确赋值。]]></Val>
+          </Tgt>
+        </Str>
+        <Disp Icon="Str" />
+      </Item>
       <Item ItemId=";Property_0_implicitly_has_type_any_because_its_get_accessor_lacks_a_return_type_annotation_7033" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Property '{0}' implicitly has type 'any', because its get accessor lacks a return type annotation.]]></Val>
@@ -5559,6 +5622,15 @@
         </Str>
         <Disp Icon="Str" />
       </Item>
+      <Item ItemId=";Property_0_is_used_before_being_assigned_2565" ItemType="0" PsrId="306" Leaf="true">
+        <Str Cat="Text">
+          <Val><![CDATA[Property '{0}' is used before being assigned.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[在赋值前使用了属性“{0}”。]]></Val>
+          </Tgt>
+        </Str>
+        <Disp Icon="Str" />
+      </Item>
       <Item ItemId=";Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property_2606" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Property '{0}' of JSX spread attribute is not assignable to target property.]]></Val>
@@ -5661,18 +5733,27 @@
       <Item ItemId=";Public_method_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4098" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Public method '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[导出类的公共方法“{0}”具有或正在使用外部模块“{2}”中的名称“{1}”，但不能为其命名。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";Public_method_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4099" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Public method '{0}' of exported class has or is using name '{1}' from private module '{2}'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[导出类的公共方法“{0}”具有或正在使用私有模块“{2}”中的名称“{1}”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";Public_method_0_of_exported_class_has_or_is_using_private_name_1_4100" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Public method '{0}' of exported class has or is using private name '{1}'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[导出类的公共方法“{0}”具有或正在使用专用名称“{1}”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -5706,18 +5787,27 @@
       <Item ItemId=";Public_static_method_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_4095" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Public static method '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[导出类的公共静态方法“{0}”具有或正在使用外部模块“{2}”中的名称“{1}”，但不能为其命名。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";Public_static_method_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4096" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Public static method '{0}' of exported class has or is using name '{1}' from private module '{2}'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[导出类的公共静态方法“{0}”具有或正在使用私有模块“{2}”中的名称“{1}”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";Public_static_method_0_of_exported_class_has_or_is_using_private_name_1_4097" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Public static method '{0}' of exported class has or is using private name '{1}'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[导出类的公共静态方法“{0}”具有或正在使用专用名称“{1}”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -6510,6 +6600,9 @@
       <Item ItemId=";Subsequent_property_declarations_must_have_the_same_type_Property_0_has_type_1_at_2_but_here_has_typ_2717" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[Subsequent property declarations must have the same type.  Property '{0}' has type '{1}' at {2}, but here has type '{3}'.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[后续属性声明必须属于同一类型。属性“{0}”在“{2}”中必须为类型“{1}”，但此处却为类型“{3}”。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -6738,6 +6831,9 @@
       <Item ItemId=";The_inferred_type_of_0_references_an_inaccessible_1_type_A_type_annotation_is_necessary_2527" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[The inferred type of '{0}' references an inaccessible '{1}' type. A type annotation is necessary.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[“{0}”的推断类型引用不可访问的“{1}”类型。需要类型批注。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
@@ -8790,18 +8886,27 @@
       <Item ItemId=";unique_symbol_types_are_not_allowed_here_1335" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA['unique symbol' types are not allowed here.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[此处不允许“唯一符号”类型。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";unique_symbol_types_are_only_allowed_on_variables_in_a_variable_statement_1334" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA['unique symbol' types are only allowed on variables in a variable statement.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[“唯一符号”类型仅可在变量语句中的变量上使用。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>
       <Item ItemId=";unique_symbol_types_may_not_be_used_on_a_variable_declaration_with_a_binding_name_1333" ItemType="0" PsrId="306" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA['unique symbol' types may not be used on a variable declaration with a binding name.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[不可在具有绑定名称的变量声明中使用“唯一符号”类型。]]></Val>
+          </Tgt>
         </Str>
         <Disp Icon="Str" />
       </Item>