be in operation
- (使某事物)生效, 起作用
- 1. (使某事物)生效, 起作用 Is this rule in operation yet? 這條規則生效了嗎?
While the company was in operation fast,.... 這句話指的是這種公司能快速地營運起起來，但是... while通常有轉折...
...last week. (她父親上周動了一次大手術。) (f)軍事行動,作戰 The general was in command of operations in the north. (將軍負責指揮北方的作戰行動。) (g)交易,買賣 He ...
... installed a cylinder and a sensor used to detect whether the machine was in operation or not. As long as the machine was still in operation, the door would lock...