refuse to talk or stop talking; fall silent
同义词：close up??/??clam up??/??dummy up??/??shut up??/??button up??/??be quiet??/??keep mum
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。