英语词汇optional delivery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 delivery
释义	optional delivery operationalizevt. 使用于操作,使开始运转,实施 proportionalityn. 比例(性)；均衡(性)；相称
随便看	included pitapeture included sapwood included sap wood included sentence included side included slag included variable included veinlet included wage Include file include function include in include list include member Include Me Out includent Include Original Text include out includer include row include rows includes include set includest include subdirectories

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。