英语词汇pre-Cambrian, geological period before c. 540m years ago怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	pre-Cambrian, geological period before c. 540m years ago
释义	pre-Cambrian, geological period before c. 540m years ago— 前寒武纪
随便看	was well below was well contained was well done was well established was well informed was well-known was well made was well maintained was well met was well organised was well positioned was well prepared was well received was well received by general public was well recognised was well recognized was well run was well taken care of was well taught was well tolerated was well understood was well underway was well worth the effort. was whisked was widely accepted

英汉双解词典包含2273206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。

pre-Cambrian, geological period before c. 540m years ago—