因此，我们也许今天讲完，或者更有可能周五讲完，无论如何，就到我们讲完等电子原子为止，这是你们第一次考试所需要准备的全部内容。

So whether we finish it today, or more likely when we finish it up on Friday, once we get passed isoelectronic atoms, that's it, that's all you need to study for this first exam.

youdao

注：自从第一次发布本指南，我们已经包含了保存文件，修复启动问题，用以ubuntu为动力的拇指驱动器来清除病毒等稍有深度的问题。

Note: since first Posting this guide, we've since covered saving files, fixing boot-up problems, and purging viruses using an Ubuntu-powered thumb drive in a bit more depth.

youdao

而对于刚确诊为1型糖尿病的患者，他们不必急着进行第一次眼科检查，可以先等几年，但是此后也应每年检查一次。

People just diagnosed with type 1 diabetes may be able to wait a few years before having their first dilated eye exam, but then should have one every year after as well.

youdao

So whether we finish it today, or more likely when we finish it up on Friday, once we get passed isoelectronic atoms, that's it, that's all you need to study for this first exam.

因此，我们也许今天讲完，或者更有可能周五讲完，无论如何，就到我们讲完等电子原子为止，这是你们第一次考试所需要准备的全部内容。

麻省理工公开课 - 化学原理课程节选

Let's move on to the last topic in terms of this first exam, which is thinking about the idea of isoelectronic atoms, or isoelectronic ions. And isoelectronic is very straightforward, it just means having the same electron configuration.

下面我们继续讲第一次考试的最后一个主题，也就是等电子原子，或等电子离子的概念，“等电子的“是非常直接的表达，它的意思就是具有相同电子排布的。

麻省理工公开课 - 化学原理课程节选