柯林斯詞典painkiller /?pe?n?k?l?/ (painkillers) 1. N-COUNT A painkiller is a drug that reduces or stops physical pain. 止痛藥 返回 painkiller劍橋詞典a drug that is used to reduce or remove physical pain 止痛藥 The body produces chemicals that are natural painkillers. 人體會產生一些化學物質，它們是天然的止痛劑。 返回 painkiller