all cats are grey in the dark the qualities that distinguish people from one another are obscured in some circumstances, and if they can't be perceived they don't matter. proverb
☞ The US version of this proverb is at night all cats are gray.
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。