This was the first time he had confronted an armed robber.

这是他第一次面对一个武装劫匪。

《牛津词典》

The policeman caught an armed robber.

那警察抓住了一个持枪劫匪。

youdao

Suddenly, an armed robber enters and fires a shot that hits them in the arms.

突然，一个持枪的抢匪冲了进来，并且射中了他们的手臂。

youdao

Two more men have been arrested after an armed robber was chased from a Dorset bank by a passer-by.

BBC: Two further arrests after Poole HSBC armed bank robbery

Last year, a suspected armed robber tried to escape by leaping into the gorilla pen at the Johannesburg Zoo.

ECONOMIST: Meet Max, a 190-kilo crimebuster

Mr Donoghue said further investigations into Huckerby's telephone records pointed to an address in Manchester which was known to have links with a convicted armed robber.

BBC: Robbery investigation 'was complex'