英语词汇“optional”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	optional
释义	Word Frequency optional (ˈɒpʃənəl) adjective possible but not compulsory; left to personal choice Derived forms optionally (ˈoptionally) adverb
随便看	Orly Orléanais Orléans Orléans Ormandy Ormazd ormer ormolu Ormonde Ormuz Ormuz Ormuzd ornament ornamental ornamentally ornamentation ornamenter ornamentist ornamentist ornate ornately ornateness Orne orneriness ornery

英语词典包含233703条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。