backport PR 1604

docs/pages/resources/changelog.md

@@ -21,6 +21,7 @@ New versions of Web Awesome are released as-needed and generally occur when a cr
 
 ## Next
 
+- Added the Simplified Chinese translation [#1604]
 - Fixed a bug [in the localize dependency](https://github.com/shoelace-style/localize/issues/20) that caused underscores in language codes to throw a `RangeError`
 - Fixed a bug in `<sl-copy-button>` that prevented exported tooltip parts from being styled [#1586]
 - Updated `@shoelace-style/localize` to 3.1.0

src/translations/zh-cn.ts

@@ -0,0 +1,39 @@
+import { registerTranslation } from '../utilities/localize.js';
+import type { Translation } from '../utilities/localize.js';
+
+const translation: Translation = {
+  $code: 'zh-cn',
+  $name: '简体中文',
+  $dir: 'ltr',
+
+  carousel: '跑马灯',
+  clearEntry: '清空',
+  close: '关闭',
+  copied: '已复制',
+  copy: '复制',
+  currentValue: '当前值',
+  error: '错误',
+  goToSlide: (slide, count) => `转到第 ${slide} 张幻灯片，共 ${count} 张`,
+  hidePassword: '隐藏密码',
+  loading: '加载中',
+  nextSlide: '下一张幻灯片',
+  numOptionsSelected: num => {
+    if (num === 0) return '未选择任何项目';
+    if (num === 1) return '已选择 1 个项目';
+    return `${num} 选择项目`;
+  },
+  previousSlide: '上一张幻灯片',
+  progress: '进度',
+  remove: '删除',
+  resize: '调整大小',
+  scrollToEnd: '滚动至页尾',
+  scrollToStart: '滚动至页首',
+  selectAColorFromTheScreen: '从屏幕中选择一种颜色',
+  showPassword: '显示密码',
+  slideNum: slide => `幻灯片 ${slide}`,
+  toggleColorFormat: '切换颜色模式'
+};
+
+registerTranslation(translation);
+
+export default translation;