Verb + 行动
The noun 行动 (xíngdòng) means 'action,' 'operation,' or 'movement.' It can refer to a planned operation, a military or police action, or simply the act of doing something. It is often modified by words describing the type or purpose of the action.
我们必须立刻采取行动。
Wǒmen bìxū lìkè cǎiqǔ xíngdòng.
We must take action immediately.
这次行动需要所有人配合。
Zhè cì xíngdòng xūyào suǒyǒu rén pèihé.
This operation requires everyone's cooperation.
救援行动在天亮前就开始了。
Jiùyuán xíngdòng zài tiānliàng qián jiù kāishǐ le.
The rescue operation began before dawn.