英语词汇“optional”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	optional
释义	optional ['ɒpʃәnl] -1 a. 可选择的, 随意的 [化] 选购的 (高研四六托雅宝 5692/5815)\n
随便看	channel of retreat channel of stationary end channelographic channelography channel op channelopathies channelopathy channel operation channel operator channel order channel orientation channel outlet coolant temperature channel output channel oven channel overload channel packet channel packing channel partner channel partner program channel patch channel pattern channel performance channel phasing channel phenomenon channel photomultiplier 莫恨还乡千里远，眼中从此故乡眷。莫惜黄金缕，都倾白玉浆。莫想青山鸟，养好笼中鸡莫想青山鸟，养好笼内鸡莫想青山鸟，喂好笼中鸡莫愁前路无知己，天下谁人不识君？莫愁双桨过湖头，望断水西楼。萋萋芳草，青青柳色，黯黯离愁。莫愁微雨落轻云，十里长亭未垫巾。莫愁春又过，看著又新春莫打鸭，打鸭惊鸳鸯。凍みどうふ凍みる凍み豆腐凍りつく凍り付く凍る凍エシヌ凍エジニ凍エル凍エ死ニ