to conceal
不瞒你说
to tell you the truth
瞒着人做
do something behind someone's back
这是瞒着我干的。
This was done behind my back.
任何事都瞒不过他。
Nothing gets past him.
汉译英翻译词典收录86165条汉英翻译词条，基本涵盖了全部常用中文字词的英语拼写、翻译、音标、读音、用法、例句等，是英语学习的有利工具。