So, hopefully, if you were to go back and look you could see that this is, in fact, copper.

因此，我希望大家如果回去再看一遍,这个题目的话，能够知道这是铜原子。

麻省理工公开课 - 化学原理课程节选

and then they offered me a full time job to come back as a senior.

于是他们向我提供了一份全职工作，希望我大四时能够回去工作。

实习生到正式员工 - SpeakingMax英语口语达人

And we'll look back maybe and see how that difficult text would've looked in its original context.

我们会倒回去看看这一不同文本,在其原背景下是什么样的。

耶鲁公开课 - 新约课程节选

It probably lowers HDL but I'll have to go back and check that.

它可能降低了高密度脂蛋白,但我要回去查一查

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And also I wanted to mention in terms of checking your Lewis structures, regardless of what they are, you should always go back and I had 10, and then count 2, 4, 6, 8, 10, because you always need to make sure you have the same number of valence electrons that you calculated in your actual structure.

我还想提一点关于检查,你的路易斯结构的建议，不管它们是什么，你总是应该回去检查一下,我有十个，然后数一数，二，四，六，八，十个，因为你总是需要确保实际价电子的数量,与你在结构中算出的数量相等。

麻省理工公开课 - 化学原理课程节选