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Peter：
I have a terrible toothache.
我牙痛得厉害。
Dentist：
Which tooth is it?
哪颗牙？
Peter：
(Pointing) This one here.
（指指）这一颗。
Dentist：
Ah, yes. There’s a big cavity.
啊，是的。有个大洞。
Peter：
Can you fill it?
能补吗？
Dentist：
I’m afraid not. The tooth is too far gone. It’ll have to be taken out.
恐怕不行。坏得太厉害了。只好拔掉了。
Peter：
Then I might as well have it out now.
那还不如现在就拔呢。
Dentist：
You’d better wait. The gums are swollen. Take the medicine I prescribe and come back in three days.
还是等等吧。牙床肿了。吃我给你开的药，三天以后再来。