He says of course Russia will develop new systems, including delivery systems, that is,missiles.

VOA: standard.2009.12.25

What I'm going to ask you to do Andrew Low is to help me develop ways to improve the Andrew Low course.

你们的任务就是,探索改进,课程的新方法。

麻省理工公开课 - 媒体、教育、市场课程节选

What happens is, in the course of a single generation, they develop their own language.

实际情况是,在一代人的时间里,他们创造出了属于自己的语言

耶鲁公开课 - 心理学导论课程节选