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

单词	optional obligation
释义	optional obligation [ˈɔpʃənl ˌɔbliˈɡeiʃən] [法]选择之债
随便看	orientation execution code orientation factor orientation fall orientation flat orientation flight orientation fluctuation orientation force orientation function orientation hysteresis orientation in aromatic substitution orientation-independent orientation index orientation information orientation inset orientationist orientationists orientation lever orientation line orientation mark orientation matrix orientation measurement orientation mechanism orientation meeting orientation movement orientation nozzle 不勤于始，终悔于终。不卖油，光敲梆不卖点颜色，还怕露不出黑来不即不离，无缚无脱不卷裤角不过河，不摸底细不开腔不厉而威，不言而信不厚其栋，不能任重不厚其栋，不能任重；重莫如国，栋莫如德。不厚费者不多营，不妄用者不过取。不厚重则无威仪，所学不能安固。けいこけいこ【稽古】けいこうけいこうけいこうけいこうけいこうけいこうけいこうけいこう【傾向】