柯林斯词典painkiller /ˈpeɪnˌkɪlə/ (painkillers) 1. N-COUNT A painkiller is a drug that reduces or stops physical pain. 止痛葯 返回 painkiller剑桥词典a drug that is used to reduce or remove physical pain 止痛葯 The body produces chemicals that are natural painkillers. 人躰會産生一些化學物質，它們是天然的止痛劑。 返回 painkiller