288. What are you up to?  你在做什么？

W: What are you up to?
你在做什么？

M: You will know in a moment.
你马上就知道了。

W: Hurry up. Otherwise we will miss the train.
快点。否则我们就要错过火车了。

M: Why do you have no reaction to it?
为什么你对此没有一点反应？

W: What are you up to?
你在做什么？

M: You didn't see it clearly.
你没看清楚吗？