flak

士兵们在躲避高射炮火时迅速寻找掩护。

The soldiers quickly took cover while dodging the ___flak.

士兵们在城市周围部署了防空炮火以防空袭。

The soldiers set up ___flak around the city to defend against air raids.

这项提议因为太昂贵而遭到媒体的猛烈抨击。

The proposal got a lot of ___flak from the media for being too expensive.