英语词汇“optional”的读音、翻译、释义、用法及例句-范文大全网

词汇	optional
释义	optionalop·tion·al AW /ˈɑpʃənl / adjective that you can choose or not choose可选择的◆an optional subject at school学校的选修科目◆an optional extra (= something that you can have as an extra thing but must pay for) 收费的可选件 OPP mandatory
随便看	chance chanced chancellor chancellors chance of (doing) sth chanceries chancery chancery court chancerycourt chances chances are (that)… chances are (that)… chance (that…) chance (to do sth) chancing chandelier chandeliers change changeable changed change (from sth) (to / into sth) change hands change (in / to sth) change (of sth) change (out of sth) (into sth) 歇后语：赵子龙上阵歇后语：照葫芦画瓢歇后语：照猫画虎歇后语：照明弹上天歇后语：三十一块钱分两注歇后语：云海里观山景歇后语：西瓜掉得油桶里歇后语：伸着脖子套绳索歇后语：提手带丁字歇后语：鹦鹉讲话歇后语：观音堂里填窟窿歇后语：抱上元宝跳窖歇后语：菜板上的鱼肉歇后语：高个子装矮个子歇后语：冰凌挂胸口歇后语：老鼠子唠铁钉歇后语：癞癞姑爬秤杆歇后语：高山土地歇后语：阎王的扇子歇后语：黄狼没打着歇后语：连腮胡子一天三光脸歇后语：黑瞎子怀孕歇后语：阎王殿里吵架歇后语：客木匠歇后语：湖南人唱京戏

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