cover your tracks idiom
掩盖行踪；抹去所做事情的痕迹
to hide or destroy the things that show where you have been or what you have been doing
Roberts covered his tracks by throwing the knife in the river. 罗伯茨把刀扔进河里以图掩盖痕迹。
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。