您要查找的是不是：
- Nothing can assure permanent happiness. 没有什么东西能确保永久的幸福。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- I'm looking for a permanent appointment. 我正在寻找固定的工作。
- She is looking for permanent employment. 她正在找固定的工作。
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活变得空虚。
- They established their permanent abode here. 他们在此建立了永久居所。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- Pig iron used as permanent ballast. 压载铁做为永久性压舱物的生铁
- A vacuum cleaner is a handy household tool. 吸尘器是一种使用方便的家庭用具。
- The shop repairs vacuum cleaners. 这家店修理吸尘器。
- She went to a beauty salon for a permanent. 她到美容院去烫了发。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- The injury left him with a permanent limp. 他受伤后就一直瘸了。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- A plant having no permanent woody stem; an herb. 草本植物，花草没有永久木茎的植物; 草本植物
- Sealed under low pressure or a partial vacuum. 抽空密封的在低压或部分真空状态下密封起来的
- The doctors couldn't bring about a real (ie permanent) cure. 这些医生都无根治良方。
- David worked as a jobber before he found a permanent job. 大卫在找到固定工作以前做零工。
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
