名词
中文翻译：双重的
同义词：
['duplex', 'duality']
例句：
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1. The house has two wings, one for each family.
这栋房子有两个翼，每个家庭一个。
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2. The company employs a team of dual professionals.
这家公司雇佣了一支由双专业人组成的团队。
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3. This device provides dual functionality: both recording and playback.
这个设备具有双重功能：录音和回放。