vacuum
英 ['vækjʊəm]
美['vækjʊəm]
- n. 真空；空间；真空吸尘器
- adj. 真空的；利用真空的；产生真空的
- vt. 用真空吸尘器清扫
词态变化
复数: vacua;第三人称单数: vacuums;过去式: vacuumed;过去分词: vaccumed;现在分词: vacuuming;
中文词源
vacuum 真空
词源同vacant,空着的，用于指真空。
英英释意
- 1. the absence of matter
- 2. an empty area or space;
- "the huge desert voids"
- "the emptiness of outer space"
- "without their support he'll be ruling in a vacuum"
- 3. a region empty of matter
- 4. an electrical home appliance that cleans by suction
英文词源
- vacuum (v.)
- "to clean with a vacuum cleaner," 1919, from vacuum (n.). Related: Vacuumed; vacuuming.
- vacuum (n.)
- 1540s, "emptiness of space," from Latin vacuum "an empty space, vacant place, a void," noun use of neuter of vacuus "empty, unoccupied, devoid of," figuratively "free, unoccupied," related to vacare "be empty" (see vain). Properly a loan-translation of Greek kenon, literally "that which is empty." Meaning "a space emptied of air" is attested from 1650s. Vacuum tube "glass thermionic device" is attested from 1859. Vacuum cleaner is from 1903; shortened form vacuum (n.) first recorded 1910.
The metaphysicians of Elea, Parmenides and Melissus, started the notion that a vacuum was impossible, and this became a favorite doctrine with Aristotle. All the scholastics upheld the maxim that "nature abhors a vacuum." [Century Dictionary]
考试真题
- Researchers can study the garbage left on the moon to see how its materials weathered the radiation and vacuum of space over time.
2018年12月四级真题（第二套）听力 Section C
- The cordless, hand-held tools we use in our homes, such as vacuum cleaners, flashlights, drills and saws came from the technology of these early space programs.
2017年12月四级真题（第二套）听力 Section C
- Surgeons may survive the robot invasion, but others at the hospital might not be so lucky, as iRobot, maker of the Roomba, a robot vacuum cleaner, has been showing off Ava, which could be used as a messenger in a hospital.
出自-2012年12月阅读原文
- Charlie McCreevy, a European commissioner, warned the IASB that it did “not live in a political vacuum” but “in the real word” and that Europe could yet develop different rules.
出自-2010年考研阅读原文
- Charlie McCreevy, a European commissioner, warned the IASB that it did "not live in a political vacuum" but "in the real world" and that Europe could yet develop different rules.
2010年考研真题（英语一）阅读理解 Section Ⅱ
词组搭配
in a vacuum
(of an activity or a problem to be considered) isolated from the context normal to it and in which it can best be understood or assessed
（需考虑的活动，问题）似在真空中；脱离现实
实用场景例句
- a vacuum pump (= one that creates a vacuum )
- 真空泵
牛津词典
- vacuum-packed foods (= in a package from which most of the air has been removed)
- 真空包装的食品
牛津词典
- 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。
牛津词典
- to give a room a quick vacuum
- 用吸尘器把房间迅速清扫一下
牛津词典
- This kind of decision cannot ever be made in a vacuum.
- 这种决定绝不能脱离实际。
牛津词典
- Have you vacuumed the stairs?
- 你用吸尘器清扫楼梯了吗？
牛津词典
- The collapse of the army left a vacuum in the area...
- 这支军队的溃败使这个地区出现了军事真空。
柯林斯高阶英语词典
- His presence should fill the power vacuum which has been developing over the past few days.
- 他的出现将填补过去这几天形成的权力真空。
柯林斯高阶英语词典
- Moral values cannot be taught in a vacuum...
- 道德价值观的教育不能脱离实际。
柯林斯高阶英语词典
- We lived in a vacuum — no life, no news, no books.
- 我们生活在与世隔绝的环境里——没有其他生物，收不到外界消息，也没有书看。
柯林斯高阶英语词典
- I vacuumed the carpets today...
- 今天我用吸尘器清洁了地毯。
柯林斯高阶英语词典
- It's important to vacuum regularly.
- 定期用吸尘器吸尘很重要。
柯林斯高阶英语词典
- Wind is a current of air caused by a vacuum caused by hot air rising...
- 风是由于热空气上升产生真空导致的一种气流运动。
柯林斯高阶英语词典
- The spinning turbine creates a vacuum.
- 旋转的涡轮形成了一块真空区域。
柯林斯高阶英语词典
- Mike Teavee: I don't know, I hate chocolate!
- 麦克: 我不知道, 我讨厌巧克力!
期刊摘选
- Sound waves will not travel through a vacuum.
- 声波在真空里不能传播.
《简明英汉词典》
- His wife's death left a vacuum in his life.
- 他妻子的去世使他的生活变得空虚.
《简明英汉词典》
- He travels in vacuum cleaners.
- 他到各地推销吸尘器.
《简明英汉词典》
- I went down on one knee to plug in the vacuum cleaner.
- 我单腿跪下插上吸尘器插头.
《简明英汉词典》
- He sells vacuum cleaners.
- 他经销真空吸尘器.
《简明英汉词典》
- In his innocence he had allowed the salesman in to discuss vacuum cleaners.
- 他傻傻地允许推销员进屋讨论吸尘器的问题.
《简明英汉词典》
- In semiconductor receivers transistors take the place of vacuum tubes.
- 在半导体收音机中晶体管代替了真空管.
《现代汉英综合大词典》
- Sound waves cannot travel through a vacuum.
- 声波不能在真空中传播.
《简明英汉词典》
- The vacuum cleaner has four different attachments.
- 吸尘器有四个不同的附件.
《简明英汉词典》
- I mean to buy a vacuum next month.
- 下个月我打算买一台真空吸尘器.
《简明英汉词典》
- My old vacuum cleaner has gone west at last and I'll have to buy a new one.
- 我的旧吸尘器终于完蛋了,因此我得买一个新的.
《简明英汉词典》
- His resignation has left a power vacuum at the head of the party.
- 他的辞职使得该党的领导位置出现了权力真空.
《简明英汉词典》
- Vacuum cleaners work by suction.
- 真空吸尘器靠抽吸除尘。
《牛津高阶英汉双解词典》
- Moral values cannot be taught in a vacuum.
- 道德价值观的教育不能脱离实际。
柯林斯例句