英语词汇optional flange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 flange
释义	optional — 任择 adj • 可选的 adj • 选配 adj • 选购 adj • 自选 flange n — 轮缘 n flange — 凸耳 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	severe hazard severe headache severe head injuries severe head injury severe health consequences severe health effects severe health problems severe hearing loss severe heat severe hemorrhage severe housing severe humanitarian severe humanitarian situation severe hypertension severe hypoglycemia severe illness severe imbalances severe impact severe impairment severe implications severe incident severe industrial applications severe inequality severe infection severe inflammation

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 —