stem1/stɛm; stem/n [C] the long thin part of a plant that grows up out of the ground〔植物的〕茎﹔柄﹔梗see picture at见 PLANT1 图
stem2v [T] stemmed , stemming to stop something from spreading or growing 遏制…的扩散﹔阻止…的增长: stem the tide/flood/flow of sth an effort to stem the rising tide of crime 遏制犯罪率上升势头的努力stem from sthphr v to develop as a result of something 起源于﹐发源于