他一头撞在门上，当场就被撞晕了。

He hit his head on the door and was instantly ___knocked out.

跑完马拉松后，他累得精疲力尽。

After running the marathon, he was completely ___knocked out.

他们在第一轮比赛中就被淘汰了。

They got ___knocked out in the first round of the tournament.