So again, we should be able to check all of our formal charges and make sure they add up to 0, which they do, and that makes sense, because we have a neutral atom in terms of thionyl chloride.

因此同样地，我们可以检验一下,我们所有的形式电荷是否正确,确保它们加起来等于零，而它们确实是这样，这是合理的，因为亚硫酰氯是一个中性原子。

麻省理工公开课 - 化学原理课程节选

Weird things, bad things can happen and so one of the lessons too that will be repeated throughout the course is to actually rigorously error check and make sure that you're always thinking about your user being a bad guy.

各种古怪的事情就会蜂拥而至,所以在这个课程中我反复强调,要一丝不苟地检查错误,你就当你的用户是个调皮捣蛋的家伙。

哈佛公开课 - 计算机科学课程节选

But then they would have to also check and make sure that June isn't just a popular month to be born, as was suggested earlier.

但是他们之后要做的是要去查看,并且确认我们之前说的，六月不是一个所有人的出生率都高的月份。

麻省理工公开课 - 计算机科学及编程导论课程节选