词汇“optional clause”的意思、用法、释义、翻译、读音、例句、短语、词组-国际大辞典

单词	optional clause
释义	见:clause: optional clause
随便看	silica brick silica-brick checkers regenerator silica cell silica cement silica-coated lead chromate silica coke oven silica dish silica drip silica drop silica fibre silica fireclay silica fire clay silica flour silica flour wash silica-gel adsorption silica-gel bead silica-gel drier silica gel grease silica-gel sphere silica gel thin-layer chromatography silica glass silica lamp silica layer silica modulus silicane

国际大辞典收录了835600条英语、德语、日语等多语种在线翻译词条，基本涵盖了全部常用单词及词组的翻译及用法，是外语学习的有利工具。