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	call request call request packet call roll call round call round call round call sb by name call sb collect call sb down for chemical entity chemical entity chemical enzyme chemical equation chemical equilibrium chemical equilibrium constant chemical equilibriumcondition chemical equipment in sets chemical equivalence chemical equivalent chemical erosion chemical etch chemical etching chemical examination chemical exchange chemical exchange process

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。