英语词汇on an optional basis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	on an optional basis
释义	optional — 任择 adj • 可选的 adj • 选配 adj • 选购 adj • 自选 basis — 本 • 根 • 根据 • 道理 basis n — 基础 n • 依据 n • 基本规律 n • 理由 n • 基本原则 n on prep — 关于 prep an num — 一个 num an n — 一项 n option — 选择 • 期权 option n — 方案 n • 选择 n • 购买权 n • 选修课 n • 选择权 n • 可选择的事物 n
随便看	questions and comments were questions and concerns questions and concerns regarding questions and objectives questions and problems questions and queries Questions and requests questions and statements questions & answers questions & answers questions & answers questions & answers session questions & answers session questions & answers session questions & answers session questions apply to questions are addressed questions are arising questions are based on questions are being raised questions are be solved questions are directed questions are encouraged questions are handled questions are left

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 —