The woman fought off the attacker.这个女人击退了袭击者。

The defenders fought off the attack.防守者击退了进攻。

These drugs are quite toxic and hinder the body's ability to fight off infection.这些药品毒性很大, 会削弱身体对感染的抵抗力。

All day she had fought off the impulse to telephone Harry.一整天, 她都在抑制自己的冲动, 没有打电话给哈里。