vacuum
''vækjuәm
释义
n. 真空, 空间, 真空吸尘器
a. 真空的, 产生真空的, 利用真空的
vt. 用吸尘器打扫
英文释义
n. the absence of matter
n. a region that is devoid of matter
n. an electrical home appliance that cleans by suction
v. clean with a vacuum cleaner
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