名词
中文翻译：真空
同义词：
['void', 'vacant', 'devoid例句：1. The vacuum cleaner sucks up dust and dirt.（吸尘器吸走灰尘和污垢。）2. The room was left in a vacuum after the fire.（火灾过后，房间一片狼藉。）']
例句：
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1. The vacuum cleaner sucks up dust and dirt.
吸尘器吸走灰尘和污垢。
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2. The room was left in a vacuum after the fire.
火灾过后，房间一片狼藉。
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3.The vacuum cleaner is designed to suck up all kinds of debris.
吸尘器设计用来吸走各种垃圾。