1.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。
2.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。
3.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。
4.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。