vacuum

1.真空a space that is completely empty of all substances, including all air or other gas

2.[ususing]真空状态；空白；空虚a situation in which sb/sth is missing or lacking

3.[ususing]（用真空吸尘器所做的）清洁，清扫the act of cleaning sth with a vacuum cleaner

in a vacuum

与世隔绝；脱离实际existing separately from other people, events, etc. when there should be a connection

1.[t][i]~ (sth)用真空吸尘器清扫to clean sth using a vacuum cleaner

1.真空;空处,空虚,空白

2.〈美口〉吸尘器

1.用吸尘器扫除

2.用真空干燥机干燥

1.真空的

2.用以产生真空的

3.利用真空的

1.a space that has had all the air and any other gases removed from it

2.a feeling that something is missing, or a situation in which something is missing

3.a vacuum cleaner

1.to clean a room using a vacuum cleaner