• And you should know that a 2 s is larger than that, and a 3 s is even larger, and of course, hopefully as we go to 4 and 5, you would be able to guess that those are going to get even larger.

    你们要知道2s比更大一点,3s就更大,当然对于4和5,你们可以猜到,它们就会更大一些。

    麻省理工公开课 - 化学原理课程节选

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