What's going on now is helping less developed countries like those in East Africa to come up to speed and be prepared for this sort of event,"

VOA: standard.2009.04.28

Come prepared and you will do fine.

来时要准备好，你就会做的很好的。

麻省理工公开课 - 固态化学导论课程节选

I expect you to come to class prepared.

我期待你们上课前都准备好了。

麻省理工公开课 - 固态化学导论课程节选

You need to come to discussion sections having thought about the lectures, having done the readings, having thought about the questions that they raise, and you need to come to discussion section then prepared to discuss this week's set of issues.

你需要去参与讨论给出自己的想法，去读阅读材料，去想他们提出的问题，并且你需要去讨论,然后准备去讨论这个星期的话题。

耶鲁公开课 - 死亡课程节选