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医生:
How long have you been in pain? 
你这样痛多久了?
病人:
It started to hurt when I was eating dinner.
我吃晚餐的时候开始疼的.
医生:
Open your mouth as wide as you can, please.
请尽量张大嘴.
病人:
How bad is it?
情况怎么样?
医生:
It's quite serious. I'm afraid we'll have to pull the tooth out.
非常严重,我恐怕得给你拔掉牙齿.