button /ˈbʌtn/ I. n. ［c］ 1.扣子，钮扣；小徽章：fasten (unfasten) the button 扣上(解开)钮扣；wear the club’s button 戴着俱乐部的徽章 2.按钮：press/touch/push the button 揿按钮 3. 用于习语on the button准确的时间、数量等：We always sit down to eat at 6.00 on the button.我们总是六点整准时吃饭。‖II.vt. & vi. 扣住，扣上： button up (down) one’s coat 扣上大衣; a dress that buttons down the back 由背部扣钮扣的连衣裙