A: What is the purpose of your visit to the United States?

你访问美国的目的是什么?

B: Business. I have a trade convention I'm attending in Chicago.

出差，我要到芝加哥去开商务会议。

A: This visa is good for two weeks. Do you intend to stay longer than that?

你的签证期限是两个星期，你打算逗留更长时间吗?

B: No, I will fly back twelve days from now.

不会，我十二天之后就要回去了。

A: What's the purpose of your trip?

你旅行的目的是什么?

B: I have come for sightseeing.

我是来观光旅游的。