作业帮英语填介副词The doctors think that the patient should be operated __ again.
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英语填介副词The doctors think that the patient should be operated __ again.
英语填介副词
The doctors think that the patient should be operated __ again.
英语填介副词The doctors think that the patient should be operated __ again.
on
on.
这个医生认为病人必须马上再次动手术
operate on sb给某人做手术