请打开你的书包，取出你的钢笔。
打开你的铅笔盒，合上你的书然后背上你的书包。
因为你愚蠢地打开了一整包棒糖，所以每一次它们都会粘在你的书包底上。
In any case their destiny is to get sticky at the bottom of your bag because you stupidly opened the whole packet.
打开你的铅笔盒/合上你的书/背上你的书包。
当你需要阅读某一本课本的时候，用书包表面的小键盘和触摸显示屏，就可以操作了，你可以轻易的找到并打开你想要的课本内容。
When you need to read a textbook when, with bag surface small keyboard and touch screen, can operate, you can easily find and open you want the content of the textbook.
当你需要阅读某一本课本的时候，用书包表面的小键盘和触摸显示屏，就可以操作了，你可以轻易的找到并打开你想要的课本内容。
When you need to read a textbook when, with bag surface small keyboard and touch screen, can operate, you can easily find and open you want the content of the textbook.
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