行凶的英文：
thuggery
thuggism

The would-be murderer was kept under close watch.
那个有行凶企图的人受到于严密的监视。

The scoundrel did violence to an old man.
这个歹徒对一位老人行凶。

The police have not captured the mugger yet.
警方还没有捕获那个行凶抢劫者。

The muggers beat up the old man within an inch of his life.
那些行凶抢劫者把那老人打得半死不活。