短語詞組用作名詞 (n.)名詞+～verb stem 動(dòng)詞詞干介詞+～on a stem 在莖上～+介詞a stem of a flower 花梗用作動(dòng)詞 (v.)～+名詞stem a stream 堵住溪水stem the spread 制止蔓延短語Stem Mut 閥桿螺母;閥桿螺絲帽stem from 起源于Stem Cells 干細(xì)胞;間質(zhì)干細(xì)胞brain stem 腦干drill stem 鉆柱；鉆桿；鉆具Akebia Stem 木通;木通粉末stem post 首柱;艏柱;船首柱Orientvine Stem 青風(fēng)藤粉末stem cell 干細(xì)胞，骨髓干細(xì)胞main stem [美俚]干線；主街valve stem 【機(jī)】閥桿from stem to stern 完全；從頭到尾stem rust 桿銹；莖銹病hemopoietic stem cell 造血干細(xì)胞stem borer 蛀莖蟲；天牛；蔗螟；茶天牛rising stem 升桿stem seal 閥桿密封；芯軸密封 返回 stem