reciprocal/rɪˈsɪprəkl; rɪ`sɪprəkl/ adjgiven and received in return; mutual 互相给与的; 互惠的; 相互 的 reciprocal affection, help, trade 互爱、 互助、 互惠贸易 have a reciprocal agreement to combat terrorism有相互配合的协定, 共同与恐怖主义作斗争.
牛津英汉双解词典