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。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
- 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。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- Losing balance, he plumped against the doorpost. 没有站稳，他一头撞在门柱上。
- 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。
- Global strategic balance and stability. 全球战略平衡和稳定。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- The skater quickly recovered his balance. 那个滑冰的人很快恢复了平衡。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- He loses his balance and fall to the grind. 他失去平衡，摔倒在地。
- My old friends' arrival got me off balance. 对老朋友们的到来，我一点准备都没有。
- Our bank balance go into the red month. 上个月，我们的银行存款余额已出现了赤字。
- 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
- An Investigation on Pressure- Vacuum Balance Air- Foot of Positioning Stage for Wafer Stepper 投影光刻机工作台的压力-真空平衡气足研究
- The balance (of 500) will be paid within one week. 余欠之数(500英镑)将於一周内付清。
- It is essential to balance one's budget. 量入为出是很重要的。
- For a long time his fate hung in the balance. 他的命运很久未能确定。
