英语词汇gradation of age classes是什么意思，gradation of age classes的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	gradation of age classes
释义	gradation of age classes　龄级顺序
随便看	inclosure includable include include include include Include Col include col Include Columns include columns include file include member include member Include Original Text include row include subdirectories included included included included included angle included angle included angle of thread included gas included sentence

英汉汉英翻译词典包含1679246条英汉翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习及翻译工作的有利工具。