So far,not one of them has been struck down by sudden death!

问题描述:

So far,not one of them has been struck down by sudden death!
请解释struck down 他是词组吗

struck是strike的过去式,他们放在一起是词组,strike down 打倒 击倒的意思.
全句:到目前为止,他们当中没有一个被死亡击倒.