英语词汇optional extra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 extra
释义	optional extran. an accessory or other additional item which is available for purchase (购买物品时的)随带附件(或其他附加品)
随便看	walk in walking delegate walking dictionary walking fern walking frame walking gentleman walking leaf walking-on part walking papers walking shoe walking stick walking tour walking wounded walk into walk it Walkman walk Matilda walk off walk off with walk of life walk-on walk on air walkout walk out walk out on

英汉双解词典包含94788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。