英语词汇optional specification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 specification
释义	optional — 任择 adj • 可选的 adj • 选配 adj • 选购 adj • 自选 specification n — 规格 n • 指明 n • 具体要求 n option n — 方案 n • 选择 n • 选修课 n • 可选择的事物 n • 选择权 n • 购买权 n option — 选择 • 期权 specification — 格式 specify v — 指定 v • 指明 v • 特定 v specify — 列明 • 明确 • 具体说明 • 规范 • 申述 specify n — 订明 n
随便看	shouldn't have done shouldn't have done shouldn't have left shouldn't miss shouldn't miss shouldn't miss shouldn't miss shouldn't miss out shouldn't miss out shouldn't miss out shouldn't need shouldn't only shouldn't only shouldn't only shouldn't take too long shouldn't use shouldn't worry shouldn´t been shouldn´t been shouldn´t been shouldn´t been shouldn´t have shouldn´t have shouldn´t I worry shouldn´t I worry

英汉双解词典包含2273206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。

optional —