What have you done to us, taking us out of Egypt?

你把我们带出埃及，是要干什么呢？

耶鲁公开课 - 旧约导论课程节选

I saw you sitting on the step and writing something. What were you doing?

我看见你坐在台阶上写什么。你在干什么呢？

沟通很重要 - SpeakingMax英语口语达人

What can you do with this law?

你能用这定律干什么呢

耶鲁公开课 - 基础物理课程节选