问你一个地理问题，世界上最长的河流是?
Bob: The Nile, I think.
尼罗河，我认为。
Tom: That’s right. Last night, I found a book about the Nile, and there were some pictures which were really pretty.
对的，昨晚，我昨晚找了本关于尼罗河的书，有好几张图片真的是漂亮。
Bob: Oh, you want to go there?
噢?你想去?
Tom: If I had the chance, I would.
有机会的话。
Bob: Why do you love the landscape of the Nile?
你为什么会喜欢尼罗河的景色?
Tom: I don’t know. It might because of the boundless stretch of desert and the oasis in it.
我不知道，也许是因为一望无际的沙漠，还有其中的绿洲吧。
Bob: Oh, I didn’t know before.
我都不知道呢。