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词汇 vacuum
释义
nounverb
a vacuum pump (= one that creates a vacuum)真空泵 vacuum-packed foods (= in a package from which most of the air has been removed)真空包装的食品 His resignation has created a vacuum which cannot easily be filled. 他的引退造成了难以填补的空白。 to give a room a quick vacuum用吸尘器把房间迅速清扫一下 This kind of decision cannot ever be made in a vacuum. 这种决定绝不能脱离实际。
Other gases rush in to fill the vacuum. The machine then creates a vacuum. The writer criticized the moral vacuum in society. Have you vacuumed the stairs? 你用吸尘器清扫楼梯了吗?
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