the sleep of the just a deep, untroubled sleep.
☞ The idea here is that only those with clear consciences can expect to have a peaceful night's sleep.
英语词组固定搭配大全包含15956条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。