名词
中文翻译：操作员
同义词：
['operator', 'operator', 'operator']
例句：
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1.The engineer is responsible for the operation of the machine.
工程师负责机器的操作。
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2. The doctor needs to operate on the patient before surgery.
在手术前，医生需要对病人进行手术。
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3.The policeman was operating a traffic light when the accident happened.
警察正在操作交通灯时发生了事故。