如果在线上操作，你可以打印你的电子票，一定记得把它带在身上。

When you do it online you can print your e-ticket which you must remember to bring with you.

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还记得在这个离子中，在原子核周围，抵消它吸引力的电子更少。

Remember in the ion, we're going to have less electrons around to counteract the pull from the nucleus.

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还记得，每次我们有两个电子被共用，我们就有了一个单键。

Remember, every time we have two electrons that are being Shared, that's a single bond.

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One major difference between electron affinity and ionization energy is that when we talked about ionization energy, remember ionization energy always has to be positive.

电子亲和能,与电离能之间最大的不同就在于,当我们提到电离能的时候，记得电离能总是正的。

麻省理工公开课 - 化学原理课程节选

I heard some people say one, and that's a good guess, remember they're actually sharing. So these two electrons, they belong to chlorine, they also belong to hydrogen, but they do, in fact, belong to chlorine as well.

我听到有些人说的是一个，这是个很好的猜测，但要记得它们其实是被共用的，因此有两个电子，它们属于氯，同时也属于氢，但实际上它们也属于氯。

麻省理工公开课 - 化学原理课程节选

Remember in the ion, we're going to have less electrons around to counteract the pull from the nucleus.

还记得在这个离子中，在原子核周围,抵消它吸引力的电子更少。

麻省理工公开课 - 化学原理课程节选