He felled his opponent with a single blow.

他一拳击倒了对手。

Many large oaks were felled during the war.

许多大橡树在那场战争期间被砍伐了。

He felled, peeled, and hewed his own timber.

他自己砍树、剥皮并劈成木材。

Badly infected trees should be felled and burned.

严重感染的树木应该被砍掉并焚烧。

Tropical forest is felled to make way for grassland.

热带森林被砍伐，腾出地方做草地。