英语词汇“optional extra”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	optional extra
释义	optional extra 任选附件
随便看	radius of roller radius of root radius of rotation radius of rotor radius of rounded angle radius of rounded corner radius of rounded crest radius of rounded root radius of rupture radius of safety radius of service radius of side-bow radius of sphere radius of sphericity radius of spin radius of stereoscopic vision radius of switch radius of target radius of the earth radius of the throat radius of throwing-soil radius of tooth fillet radius of torsion radius of trailing edge radius of turn 德有余而为不足者谦，财有余而为不足者鄙德有所长而形有所忘德有所长，而形有所忘。德有馀而为不足者谦，财有馀而为不足者鄙。德望旧悬霄汉外，诗卷常留天地间。德未盛而欲变化以趋时，为诡而已矣。德本财末德比于上，欲比于下。德比于上，欲比于下。德比于上故知耻，欲比于下故知足德比于上，欲比于下。德比于上，故知耻；欲比于下，故知足。起用起电起疑起疱起皮起皱起眼起眼儿起码起碇