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

单词	optional
释义	optional adjective /ˈɒpʃənl/ /ˈɑːpʃənl/ jump to other results that you can choose to do or have if you want to Certain courses are compulsory; others are optional. This model comes with a number of optional extras (= things you can choose to have but which you will have to pay extra for). These features can be offered as an optional part of the package. Topics Educationb2 Oxford Collocations Dictionaryverbs be make something adverb entirely purely See full entry
随便看	buffoon buffoonery buff up meanwhile_2 meany measles measly measurable measurably measure measure_1 measure_2 measure against measure-against measured Measure for Measure measureless measurement measure out measure-out measure up measure-up measuring cup measuring-cup measuring jug

英语词典包含84843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。