英语词汇optional courses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	optional courses
释义	optional courses conversationalistn. 健谈的人 operationalizevt. 使用于操作,使开始运转,实施
随便看	Resource constraints Resource consumption Resource contention resource contention model resource control resource control algorithm resource control block resource control mode resource coordination resource cost resource costs resource count resource creat block resource create block resource data resource database resource data file resource data subsystem resource deallocation resource definition resource definition statement resource definition table resource demand resource demand pattern resource denied frame

英汉双解词典包含3607232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。