Patient: What do you charge for pulling a tooth?

Dentist: Fifty dollars.

Patient: Fifty dollars for a couple of minutes' work?

Dentist: Well, I could do it slower, if you like.

我可以慢点

病人：拔一颗牙收费多少?

牙医：50美元。

病人：只几分钟的活儿就要50美元?

牙医：好的，如果你喜欢的话，我可以干得慢一些。