名词
中文翻译：首席官员
同义词：
['head of department', 'chief executive', 'director']
例句：
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1. He isthe chief officer of the marketing department.
他是营销部门的负责人。
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2. The chief officer was responsiblefor overseeing the entire project.
这位首席官员负责监督整个项目。
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3. Thechief officer made a presentationto the board of directors.
这位首席官员向董事会做了汇报。