Quán / jī / shǒu / bèi / duì / shǒu / yì / quán / jī / yūn / dǎo / zài / le / lèi / tái / shàng

拳击手被对手一拳击晕，倒在了擂台上。

The boxer was knocked unconscious by one punch from his opponent and fell onto the ring.