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Vacuum cleaners work by suction.是什么意思？

Vacuum cleaners work by suction.

真空吸尘器靠抽吸除尘。

相关词汇
vacuum cleaners work by suction

vacuum

n. 真空，空白，空虚，清洁；v. 用真空吸尘器清扫；

cleaners

n. 洗衣店，清洁剂( cleaner的名词复数 )，保洁员，吸尘器，干洗店；

work

vt.& vi. 使工作，使运作，操作，使产生效果；n. 工作，操作，著作，工厂，行为，事业；vt. 使工作，操作，经营，使缓慢前进；

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

suction

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