名词
中文翻译：Unknown
同义词：
['chair', 'seat', 'throne', 'chairperson', 'preside']
例句：
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1. Thechairman of the committee is expected to deliver a speech tomorrow.
委员会主席预计明天发表演讲。
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2. He sat in the chair and began to speak.
他坐在椅子上开始讲话。
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3. She was elected as the chairperson of the board.
她被选为董事会主席。