名词
中文翻译：真空
同义词：
['vacuum', 'vacuum state例句：1. The vacuum cleaner is designed to suck up dust and dirt.（真空吸尘器设计用来吸走灰尘和污垢。）']
例句：
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1. The vacuum cleaner is designed to suck up dust and dirt.
真空吸尘器设计用来吸走灰尘和污垢。
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2.The vacuum cleaner has a powerful suction power.
这款吸尘器具有强大的吸力。
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3. The vacuum cleaner is used to clean the floor thoroughly.
这款吸尘器被用来彻底清洁地板。