chore(i18n,learn): processed translations (#49545)

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/escape-sequences-in-strings.md

@@ -19,7 +19,11 @@ dashedName: escape-sequences-in-strings
 
 使用转义字符把下面三行文本赋值给一个变量 `myStr`。
 
-<blockquote>FirstLine<br>    \SecondLine<br>ThirdLine</blockquote>
+<pre>
+FirstLine
+    \SecondLine
+ThirdLine
+</pre>
 
 你需要使用转义字符正确地插入特殊字符。 你也需要确保间距与上面文本一致，并且单词或转义字符之间没有空格。
 

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/replacing-if-else-chains-with-switch.md

@@ -60,43 +60,43 @@ assert(!/if/g.test(code));
 assert(code.match(/break/g).length >= 4);
 ```
 
-`chainToSwitch("bob")` 应该是字符串 `Marley`
+`chainToSwitch("bob")` should return the string `Marley`
 
 ```js
 assert(chainToSwitch('bob') === 'Marley');
 ```
 
-`chainToSwitch(42)` 应该是字符串 `The Answer`
+`chainToSwitch(42)` should return the string `The Answer`
 
 ```js
 assert(chainToSwitch(42) === 'The Answer');
 ```
 
-`chainToSwitch(1)` 应该是字符串 `There is no #1`
+`chainToSwitch(1)` should return the string `There is no #1`
 
 ```js
 assert(chainToSwitch(1) === 'There is no #1');
 ```
 
-`chainToSwitch(99)`应该为 `Missed me by this much!`。
+`chainToSwitch(99)` should return the string `Missed me by this much!`
 
 ```js
 assert(chainToSwitch(99) === 'Missed me by this much!');
 ```
 
-`chainToSwitch(7)` 应该是字符串 `Ate Nine`
+`chainToSwitch(7)` should return the string `Ate Nine`
 
 ```js
 assert(chainToSwitch(7) === 'Ate Nine');
 ```
 
-`chainToSwitch("John")` 应该为 `""` (empty string)。
+`chainToSwitch("John")` should return `""` (empty string)
 
 ```js
 assert(chainToSwitch('John') === '');
 ```
 
-`chainToSwitch(156)` 应该为 `""` (empty string)。
+`chainToSwitch(156)` should return `""` (empty string)
 
 ```js
 assert(chainToSwitch(156) === '');