音似：阿伯微醺
阿伯被送上手術檯前先被麻醉，不醒人事

1、運作，實施，工作 n.
There are several reactors of the type in operation (= working) at the moment.
目前有幾個這樣的反應堆在工作。
We expect the new system for assessing claims to come into operation (= start working) early next year.
我們預計明年初施行核定索賠的新方案。

2、（機器或系統的）運作，運行；（對機器或系統的）操作，使用

3、企業
Less profitable business operations will have difficulty in finding financial support.
盈利較少的企業會很難得到財政資助。

4、（有目的的）活動，行動
a military/peacekeeping operation.
軍事／維和行動
Following the earthquake, a large-scale rescue operation was launched.
地震後發起了一場大規模的救援行動。
[ + to infinitive ] The operation to fly in supplies will begin as soon as possible.
向這裡空運補給品的行動會盡快展開。

5、手術
a major/minor/routine operation
大／小／常規手術
an abdominal/cataract/transplant operation
腹部／白內障／移植手術
He has to have an operation on his shoulder.
他的肩部必須做個手術。
[ + to infinitive ] We will know in a couple of days if the operation to restore her sight was successful.
我們幾天後就能知道她恢復視力的手術是否成功。