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	long and short arm suspension long and short dash long and short dash line long-and-short haul clause long and short ridge tile long-and short-term objectives long-and-short work long and two short dash line longanecker longan flesh longanimities longanimity longanimous longanimously longanine longaninine longannet longannets Longanoct long anode tube longanon longanone longans long-answer long-anticipated 垂拱而治垂暮之年垂死挣扎垂涎三尺垂涎欲滴垂耳下首垂范百世垂裕后昆垂饵虎口垂首丧气殊荣殊行殊誉殊选殊途同归殊遇殊难… 残残人害理残体