The operation saved her life.

手术挽救了她的生命。

《牛津词典》

The operation was Kelly's only hope of survival.

那次手术是凯利生存的唯一希望。

《牛津词典》

The operation itself is a brief, painless procedure.

手术本身是一个短暂、无痛的过程。

《柯林斯英汉双解大词典》

As a result,those babies can have higher stress levels than those born without the help of the operation.

VOA: special.2009.11.24

Why does agreement to a certain procedure, even a fair procedure, justify whatever result flows from the operation of that procedure?

为什么只要经过了特定程序，公平的程序，不管任何结果都可以视为正当呢？

耶鲁公开课 - 公正课程节选

The second principle is did the distribution arise from the operation of free consent, people buying and trading on the market?

第二条原则，财富的分配是否,基于自由达成的交易，基于自由市场的买卖？

耶鲁公开课 - 公正课程节选

As soon as we can get him home to have the operation he needs we will do so.

BBC: England captain Adrian Morley ruled out of Four Nations

As part of the operation, doctors had to pull out his front teeth, Kelly said.

WSJ: Former Bills QB Kelly battling cancer of the jaw

Four of the kidnappers were killed in the operation to rescue the boy, media reports say.

BBC: Karachi security - file photo from 2002