名词
中文翻译：首领
同义词：
['leader', 'chieftain', 'head例句：1. The chief of the police department was called to investigate the crime scene.（警察局长被叫来调查犯罪现场。）']
例句：
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1. The chief of the police department was called to investigate the crime scene.
警察局长被叫来调查犯罪现场。
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2.The chief executive officer is responsible for the day-to-day operations of the company.
首席执行官负责公司的日常运营。
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3. The chief engineer designed the new machine.
首席工程师设计了这台新机器。