英语词汇it has been mandatory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	it has been mandatory
释义	mandatory — 义务 mandatory adj — 强制性的 adj • 法定的 adj it pron — 它 pron IT — 信息技术 • 技术情报 has-been — 过气
随便看	know of him know of no reason know of only know of something know of the possibility know of the problem know one another know oneself know one's onions know one's place know one's stuff know only too well know or care know or has reason to know know or presume know or suspect know other cultures know our business know our country know ourselves know parameters know perfectly know perfectly well know personally know price range

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。

mandatory —