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

单词	optional operation
释义	optional operation 任选作业
随便看	two-subjects two-sublattice model two-suiter two supply circuit two-supply circuit two-surface lens two-syllable two-syllables two-symbol twosymbol two-symbol Turing machine two symmetry twot two-table machine two tables two-t-account method two-tailed two-tailed exponential distribution two-tailed pasha two-taileds two-tailed test two tailed test two-tail test two tail test two-tank 八两换半斤，人心换人心八两是半斤八两秤，明讲八两配半斤八个人也抬不走一个“理”字八个人捆一块儿也说不过八个金刚也抬不动八个金刚抬不动八个麻雀抬轿，担当不起八九不离十どーぴんぐどーむどーらんど付きど偉いど忘れど根性ど真んなかど真ん中ど突く