Be sure and close the window.

务必关上窗户。

youdao

You go and close the window.

你过去把窗户关上。

youdao

Do me a favor and close the window.

帮帮忙把窗子关上。

youdao

In the other context, you know in a Window and a Windows machine, you close it with the X on the top right hand corner, where do you close it in the Mac?

还有一个就是，在Windows操作系统下,当你要关闭某个东西时，需要点击,右上角的“X“,那在Mac操作系统下呢？

哈佛公开课 - 计算机科学课程节选

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