fix(i18n): update Chinese translation of redux (#38825)

curriculum/challenges/chinese/03-front-end-libraries/redux/remove-an-item-from-an-array.chinese.md

@@ -3,26 +3,30 @@ id: 5a24c314108439a4d403615a
 title: Remove an Item from an Array
 challengeType: 6
 isRequired: false
-videoUrl: ''
+forumTopicId: 301447
 localeTitle: 从数组中删除项目
 ---
 
 ## Description
-<section id="description">是时候练习从数组中删除项目了。扩展运算符也可以在这里使用。其他有用的JavaScript方法包括<code>slice()</code>和<code>concat()</code> 。 </section>
+<section id='description'>
+是时候练习从数组中删除项目了。扩展运算符也可以在这里使用。其他有用的JavaScript方法包括<code>slice()</code>和<code>concat()</code>。
+</section>
 
 ## Instructions
-<section id="instructions">修改了reducer和action creator，以根据项目的索引从数组中删除项目。完成编写reducer以便返回一个新的状态数组，并删除特定索引处的项。 </section>
+<section id='instructions'>
+reducer 和 action creator 被修改为根据项目的索引从数组中删除一个项目。完成编写 reducer 以便返回一个新的状态数组，并删除特定索引处的项目。
+</section>
 
 ## Tests
 <section id='tests'>
 
 ```yml
 tests:
-  - text: 'Redux存储应该存在并初始化为等于<code>[0,1,2,3,4,5]</code>的状态'
+  - text: Redux store 应该存在并初始化一个<code>[0,1,2,3,4,5]</code>的状态。
     testString: assert((function() { const initialState = store.getState(); return (Array.isArray(initialState) === true && DeepEqual(initialState, [0, 1, 2, 3, 4, 5])); })());
-  - text: <code>removeItem</code>和<code>immutableReducer</code>都应该是函数。
+  - text: <code>removeItem</code>和<code>immutableReducer</code>都应该是一个函数。
     testString: assert(typeof removeItem === 'function' && typeof immutableReducer === 'function');
-  - text: 调度<code>removeItem</code>动作创建者应该从状态中删除项目，不应该改变状态。
+  - text: dispatch <code>removeItem</code> action creator 应该从 state 中删除项目，不应该改变 state。
     testString: assert((function() { const initialState = store.getState(); const isFrozen = DeepFreeze(initialState); store.dispatch(removeItem(3)); const state_1 = store.getState(); store.dispatch(removeItem(2)); const state_2 = store.getState(); store.dispatch(removeItem(0)); store.dispatch(removeItem(0)); store.dispatch(removeItem(0)); const state_3 = store.getState(); return isFrozen && DeepEqual(state_1, [0, 1, 2, 4, 5]) && DeepEqual(state_2, [0, 1, 4, 5]) && DeepEqual(state_3, [5]); })());
 
 ```
@@ -38,7 +42,7 @@ tests:
 const immutableReducer = (state = [0,1,2,3,4,5], action) => {
   switch(action.type) {
     case 'REMOVE_ITEM':
-      // don't mutate state here or the tests will fail
+      // 不要在这里改变 state 否则测试会失败。
       return
     default:
       return state;
@@ -53,7 +57,6 @@ const removeItem = (index) => {
 }
 
 const store = Redux.createStore(immutableReducer);
-
 ```
 
 </div>
@@ -65,8 +68,28 @@ const store = Redux.createStore(immutableReducer);
 ## Solution
 <section id='solution'>
 
+
 ```js
-// solution required
+const immutableReducer = (state = [0,1,2,3,4,5], action) => {
+  switch(action.type) {
+    case 'REMOVE_ITEM':
+      return [
+        ...state.slice(0, action.index),
+        ...state.slice(action.index + 1)
+      ];
+    default:
+      return state;
+  }
+};
+
+const removeItem = (index) => {
+  return {
+    type: 'REMOVE_ITEM',
+    index
+  }
+}
+
+const store = Redux.createStore(immutableReducer);
 ```
 
-/section>
+</section>