您要查找的是不是：
- 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。
- You should learn to be independent of your parents. 你应该学习不要依赖父母。
- 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。
- They are a proud and independent people. 他们是独立自主的民族。
- She's very independent and lives all alone. 她自食其力，独自生活。
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活变得空虚。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- 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。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- An independent man, Peter never goes with the tide. 彼得是个有主见的人，从不随大流。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- 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
- She is so independent that she refused all pecuniary aid. 她很独立，所以拒绝一切金钱上的资助。
- The former colonial possessions are now independent states. 以前的许多殖民地现已成为独立的国家。
- Ultimately, all the colonies will become independent. 所有的殖民地最终均将独立。
- Music with two or more independent melodic parts sounded together. 复调音乐具有同时发声的两个或多个独立旋律部分的音乐。
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
- We could not pull apart two plates which enclosed a vacuum. 如果两个盘子间是真空，我们就无法将它们分开。
- Many colonies in Africa became independent nations in the 1950's. 非洲许多殖民地在二十世纪五十年代成了独立国家。
