单词	optional extra
释义	optional extra 任选附件
随便看	cement eczema cemented cemented armor cemented armour cemented armour plate cemented belt joint cemented carbide cemented carbide alloy cemented carbide bit cemented-carbide bit cemented carbide die cemented carbide drill cemented carbide parts cemented carbide powder cemented carbides cemented-carbide tool cemented carbide tool cemented carbon steel cemented catalyst cemented catalysts cemented chip board cemented component cemented copper cemented doublet cemented excelsior board 䩬䩭䩮䩯䩰䩱䩲䩳䩴䩵たな卸したな引くたな晒したな浚えたにたに【谷（渓・谿）】たにあいたにあい【谷間】たにおりたにおり【谷折り】