1 to fight sb who is attacking you and drive him/her away 击退；打垮；驱逐: to repulse an attack/invasion/offensive 击退一次进攻/入侵/攻势

2 to refuse to accept sb's help, attempts to be friendly, etc 拒绝接受；回绝: She repulsed his advances. 她拒绝了他的追求。

3 (usually passive 通常用于被动语态) to make sb feel disgust or strong dislike 使厌恶；使反感: I was repulsed by the horrible smell. 这种可怕的气味让我恶心。