That basically says, how close are you the guts of the machine?

那基本上是说，你能有多靠近机器的核心呢？

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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？

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