adj.有茎的,去掉茎的;
v.遏制[阻止](液体的流动等)( stem的过去式和过去分词 );封堵;遏止;
例句:
His error stemmed from carelessness.
他的错误是由于粗枝大叶而造成的.
The loss stemmed from his recklessness.
损失是他的鲁莽冒失造成的.
From this source there stemmed major new branches of mathematics.
由此起源产生了数学的一些主要新分支.