英语词汇optional ip 67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 ip 67
释义	optional — 任择 adj • 可选的 adj • 选配 adj • 选购 adj • 自选 IP— 网际协定 option n — 方案 n • 选择 n • 可选择的事物 n • 选择权 n • 购买权 n • 选修课 n option — 选择 • 期权
随便看	person taking a job person talking person that person-times person to assist person to be contacted person to be examined person to be interviewed person to be served person to contact person-to-goods person-to-person communication person to person dialogue person-to-person encounters person-to-person manner person-to-person payments person training person trip person uncomfortable. person under duty person under investigation person under the age of 18 person under the express person under this person vehicles

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 —