And then, if we have time at the end, we'll introduce one last topic, which is isoelectronic atoms and ions.

最后，如果有时间的话，我们将再介绍最后一个主题：,等电子原子与离子。

麻省理工公开课 - 化学原理课程节选

And the cashier is taking a long time.

所以结账要等很长时间。

I can't 课堂 - SpeakingMax英语口语达人

You can't read it unless you take the course -and so I'm going to wait a little bit.

也就是说，你只有选了这门课才能读到,所以我会等一段时间再发。

耶鲁公开课 - 文学理论导论课程节选

It gives foods a longer shelf life, and so things like pastries and individual wrapped packages have a very long shelf life, longer than if they don't have Trans fats.

它增长了食物的保质期,让糕点和独立包装的食品等能存放很久,比不含反式脂肪的食品存放时间长

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

He hung out with them and then the time passed and the world didn't end.

他和他们一起等，时间过去了,但世界末日并没有出现。

耶鲁公开课 - 心理学导论课程节选