"For me,I think it was more difficult because I dealt with the guilt of missing my child, having him so far away, then always trying to get home on the weekends to see him, as well as keeping up with school and remaining active,"

VOA: standard.2009.12.04

On the other hand, if you haven't been keeping up, I hope that you won't pass so I can tell you, look, you have to do things differently.

另一方面，如果你没有继续进行，我希望你不能够过，因此我要告诉你的是，看，你做的事分别很大。

麻省理工公开课 - 固态化学导论课程节选

I mean it's keeping up on your desk. You can't even see your work.

这些糖果在你桌子上慢慢堆了起来，你都快看不见你的工作文件了。

That's all课堂 - SpeakingMax英语口语达人

In real life, Brown is credited with keeping people's spirits up in the lifeboat until they were rescued by another ship,the Carpathia.

VOA: special.2010.03.08

You add them all up algebraically, keeping track of their sign, and that's the total force.

你再对这些力做代数加法,注意符号,就求出合力了

耶鲁公开课 - 基础物理课程节选

"Keeping everybody up to speed with what we were doing, what we were learning, what the key issues were.

VOA: standard.2010.04.29