Vacuum
[ 'vækjʊəm ]
第5级
其它 Other
n. 真空;空白;空虚;清洁;
v. 用真空吸尘器清扫;
💡 词根助记
vac空+uum表名词 →空虚；真空
📝 例句
A vacuum flask keeps cool drinks cool and hot drinks hot.
保温瓶使冷饮保冷，使热饮保温。
A vacuum cleaner is a handy household tool.
吸尘器是一种使用方便的家庭用具。
His orders were issued into a vacuum, so to speak.
他的命令在某种程度上等于一纸空文。
Her husband's death left a vacuum in her life.
她丈夫的死使她的生活变得空虚。
The porter turned off the vacuum.
清洁工关掉真空吸尘器。
🌱 联想助记
【记】※ va-谐音“蛙”,cu-拼音“醋”,um-拼音“幽默”:青蛙用醋来泡真空吸尘器,真幽默
※ va-谐音“挖”,cu-化学元素“铜”,u-you你,m-拼音“妈”:为了挖铜,你妈竟然用上了真空吸尘器
✅ 同义词
🔤 词根
-vac-表示“空”
常见变体有-vast-、-van-、-void-
📖 牛津释义
vacuum
n
(pl 复数作 ~s or, in scientific use, 科技用语复数作 vacua )
1
(a) space that is completely empty of all matter orgas(es) 真空.
(b) space in a container from which the air has been completely or partly pumped out （容器的）真空状态
create a perfect vacuum 形成完全的真空状态.
2 (usu sing 通常作单数) (fig 比喻) situation or environment characterized by emptiness （情况或环境的）空洞状态
There has been a vacuum in his life since his wife died. 他妻子去世後他的生活很空虚.
3 (infml 口) = vacuum cleaner.
4 (idm 习语) in a `vacuum isolated from other people, facts, events, etc 与其他的人、 事等脱离或隔绝
live, work, etc in a vacuum 在与外界隔绝的环境中生活、 工作等. vacuum, v [I, Tn, Tn.p]
~ sth (out) (infml 口) clean (sth) with a vacuum cleaner 用真空吸尘器清扫（某物）
vacuum the stairs, carpet 用吸尘器清扫楼梯、 地毯等
vacuum (out) the car 用吸尘器打扫汽车.
🎯 考研助记
vacu(=vac空)+um(地方):真空的装置: 吸尘器
🔁 扩展释义
*[`'vækjuәm]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【化】 真空【医】 真空
🌿 同词根单词
📖 同为「高中」词汇
查看全部高中词汇 ›🗣️ 情景例句
He's gone out of business.
他失业了。
To trumpet
咆哮
I realized that they would be very worried, but that they would trust our good sense, wherever we were.
我想他们会很担心，但是无论我们在什么地方，他们都会相信我们的处事能力。