All that glitters is not gold is a well-known saying, meaning that not everything that looks precious or true turns out to be so. This can apply to persons, places, or things that promise to be more than they really are.
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。