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。
- 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。
- You may leave your key at the reception desk. 你可以把钥匙留在服务台。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- He put the key in the lock and turned it. 他把钥匙插入锁里转动。
- 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。
- I have mislaid my key to the door. 我不知道把门钥匙放到哪里了。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- He's locked in and nobody knows where the key is. 他被锁在房间里，没有人知道钥匙在什么地方。
- Reading is the key to the treasure house of ideas. 读书是打开知识宝库的钥匙。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- I looked everywhere for my lost key. 我到处寻找我丢失的钥匙。
- She inserted the key into the lock. 她把钥匙插入锁中。
- The key turned halfway and then jammed. 钥匙转了一半就卡住了。
- 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 key to the whole affair was his jealousy. 整个事情的症结是因为他忌妒。
- Do you know the key to the problem? 你知道这道题的答案吗？
- Your scatty son has forgotten his key again. 你那儿子丢三落四又把钥匙给忘了。
