exchange blows

We were about to exchange blows when the principal saw us and took us to the office.

我们正要打起来时，校长正好看到，把我们带到了校长室。

Deep in the oceans, heavily armoured mantis shrimp exchange blows from hammer-like appendages in fights over territory.

海洋深处，身披重甲的螳螂虾在河山的争斗赌暌姑锤头般的肢体互殴。

The disagreement in opinion regarding the question makes them exchange blows.

他们在那个问题上意见不和以致互相攻击。

Anyway I also didn't exchange blows with others for a long time, in the mind's returning is really a little bit carefree alarm.

反正我也好久没和人交手了，心里还真是有点闲得慌。