| 单词 | keep (something) under one's hat | 
| 释义 | keep (something) under one's hatidiom  : to keep (something) secret : to not tell anyone about (something)  I'll tell you what happened, but you have to keep it under your hat. | 
| 随便看 | 
英语词典包含469781条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。