button up英 [ˈbʌtn ʌp]美 [ˈbʌtn ʌp]扣上…的纽扣电力柯林斯词典→ see:button 2英英释义verbrefuse to talk or stop talkingThe children shut up when their father approachedSynonym:close upclam updummy upshut upbelt upbe quietkeep mum双语例句