go under the knife

• [口]动手术； 开刀

go under the knife的用法和样例：

例句

1. The doctors decided to operate on the patient once.
   医生们决定立刻动手术。
2. Better have the operation right now.
   你最好还是现在就动手术。
3. The surgeon operated on her for a tumor.
   医生为她的肿瘤开刀。
4. The doctor advised an immediate operation.
   医生建议马上开刀。

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