vacuum
/ˈvækjuːm/📚 14673 100 2四级六级考研托福雅思If someone or something creates a vacuum, they leave a place or position that then needs to be filled by another person or thing. 空缺
noun [抽象名词]真空，真空容器；真空吸尘器；空白，空虚；（用真空吸尘器所做的）清洁，清扫
His presence should fill the power vacuum that has been developing over the past few days.
他的出现应该能填补过去几天中形成的权力空缺。
verb [vt. 及物动词]用真空吸尘器打扫
It's important to vacuum regularly.
定期用吸尘器清洁是很重要的。
adjective [原级]利用真空的；真空的；产生真空的
Moral values cannot be taught in a vacuum.
道德价值观不能在与世隔绝的状态中进行传授。
- vacuum 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 46 Do it yourself
vacu(空) ＋ um → 真空
单词造句:
- 网友用“Vacuum”造句精选
- Wind is a current of air caused by a vacuum caused by hot air rising. 风是由热空气上升产生真空而引起的空气流动。
- I vacuumed the carpets today. 我今天用吸尘器清洁地毯了。
- Vacuum cleaners work by suction. 真空吸尘器靠抽吸除尘。
- The vacuum has an unpleasant smell. 这个真空吸尘器有股难闻的气味。
- Exclusion of air creates a vacuum in the bottle. 瓶子里的空气排除后就产生真空。