Yu HuaTwenty years ago, I was a dentist in a little town in southern China. Forceps in hand, I extracted teeth for up to eight hours a day.
二十年多前，我是一名牙科医生，在中国南方的一个小镇上手握钢钳，每天拨牙长达八个小时。
Yu HuaTwenty years ago, I was a dentist in a little town in southern China. Forceps in hand, I extracted teeth for up to eight hours a day.
二十年多前，我是一名牙科医生，在中国南方的一个小镇上手握钢钳，每天拨牙长达八个小时。
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