英语词汇gradation period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	gradation period
释义	gradation period 【地质学】均夷期
随便看	mobile jum botron mobile libraries mobile library mobile loader mobile mine mobile missiles mobile phone mobile phones mobile radio mobile relay station mobile retiree mobile robot mobile robots mobiles mobile sculpture mobile station mobile stations mobile systems equipment mobile unit mobile units mobilgas Mobilian mobiliary mobiliary art Mobilina

英汉双解词典包含483723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。