他已经因为临时应急的义务被召唤过4次了。

He was already called 4 times for jury duty.

youdao

首先，这些武器应当只在遭受核袭击后反击时才使用。其次，这些武器的拥有必须是一种临时的应急手段。

First, the weapons should be intended for use only in retaliation after a nuclear attack. Second, the possession of the weapons must be a temporary expedient.

《柯林斯英汉双解大词典》

应急预案还包括及时将伤者送到医院救治，迅速开展辖区内孤寡老人的临时救助及危旧楼房巡查工作。

Emergency plans were also issued to ensure those injured were hospitalized, aid was given to the elderly, and damaged buildings were inspected.

youdao