Always keep the plants moist. Watch for yellowing or black spots on the stems.

VOA: special.2009.03.03

But as he asks at the end, "... / when was that ever a bar / to any watch they keep?"

但他最后问的那句。,哪里什么时候有一个小酒馆/,用来让他们等待？

耶鲁公开课 - 现代诗歌课程节选

Partly because I think it's a good exercise, but also I don't want this class to be a class where you sit there, with your cup of Willoughby's coffee if needed to keep awake, and you watch me solve models because that's not how you learn.

一方面是由于我认为这是个好的锻炼机会,此外,我也不希望这个课程,变成你们坐在这,用威洛比咖啡来保持清醒,一边看我解决问题,因为你们不应那样学习

耶鲁公开课 - 博弈论课程节选

The next day, at their school, the woman asks the man to keep an eye on, or watch the young students in her class while she is out of the classroom.

VOA: special.2009.09.06

Well,I think it's that governments around the Gulf do actually keep a very close watch on their populations and on people coming in and out of their countries.

VOA: standard.2010.08.11