He has two electrons here with the same set of quantum numbers. B but these are two separate hydrogen atoms.

因为我写了两个量子数,一样的电子,但这是在两个不同原子中啊。

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He has not one, not two but three coats on as well as two scarves.

不是一件，也不是两件，他一共穿了三件外套，围了两条围巾。

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