n.柄；莖；干；船首

vi.起源于

vt.抽去 ... 的梗；給 ... 裝柄；逆 ... 而行；阻止，遏制

Don't eat the stem of a mushroom. 不要吃蘑菇的梗。

This is a plant stem that has been pithed. 這是一根已經(jīng)除去木髓的植物的莖。

Crime and punishment grow out of one stem. 罪與罰本是同莖生。

The liner has been refitted from stem to stern. 那艘班輪已經(jīng)全面整修。

Your errors stem all from your carelessness. 你犯的錯(cuò)誤全都是由于你的粗心。

Our ship stemmed on against the current. 我們的船逆流而上。

n.系統(tǒng)；制度；體制

名詞system的復(fù)數(shù)形式.

子系統(tǒng)