stem

stem读音音标

英 [stem]

美 [stɛm]

stem意思解释

n.

（花草的）茎；

词干；

（高脚酒杯的）脚；

烟斗柄

vt.

遏制[阻止]（液体的流动等）；

阻止；

封堵；

遏止

变形

复数：stems

过去式：stemmed

过去分词：stemmed

现在分词：stemming

第三人称单数：stems

双语释义

n.(名词)

[C] (花草的)茎,(树木的)干 main central part of a plant, bush or tree coming up from the roots, from which the leaves or flowers grow[C] 词干 root or main part of a noun or verb from which other parts or words are made, e.g. by altering the endings

v.(动词)

vt. 遏制〔阻止〕(液体的流动等) restrain or stop (the flow of liquid, etc.)vi. 起源,由…造成 originate or be caused by sth

英英释义

stem

[ stem ]

n.

(linguistics) the form of a word after all affixes are removed

\"thematic vowels are part of the stem\"

同义词：rootroot wordbasethemeradical

a slender or elongated structure that supports a plant or fungus or a plant part or plant organ

同义词：stalk

cylinder forming a long narrow part of something

同义词：shank

the tube of a tobacco pipe

front part of a vessel or aircraft

同义词：bowforeprow

a turn made in skiing; the back of one ski is forced outward and the other ski is brought parallel to it

同义词：stem turn

v.

grow out of, have roots in, originate in

\"The increase in the national debt stems from the last war\"

cause to point inward

\"stem your skis\"

stop the flow of a liquid

同义词：stanchstaunchhalt

remove the stem from

\"for automatic natural language processing, the words must be stemmed\"

词汇搭配

用作名词 (n.)名词+～verb stem动词词干介词+～on a stem在茎上～+介词a stem of a flower花梗用作动词 (v.)～+名词stem a stream堵住溪水stem the spread制止蔓延

词组短语

stem cell

干细胞，骨髓干细胞

stem from

起源于

brain stem

脑干

drill stem

钻柱；钻杆；钻具

main stem

[美俚]干线；主街

valve stem

【机】阀杆

from stem to stern

完全；从头到尾

stem rust

杆锈；茎锈病

hemopoietic stem cell

造血干细胞

stem borer

蛀茎虫；天牛；蔗螟；茶天牛

rising stem

升杆

stem seal

阀杆密封；芯轴密封

双语例句

用作名词(n.)Don\'t eat the stem of a mushroom.不要吃蘑菇的梗。This is a plant stem that has been pithed.这是一根已经除去木髓的植物的茎。Crime and punishment grow out of one stem.罪与罚本是同茎生。She bought some roses with long stems.她买了一些枝干很长的玫瑰花。The liner has been refitted from stem to stern.那艘班轮已经全面整修。用作不及物动词(vi.)Your errors stem all from your carelessness.你犯的错误全都是由于你的粗心。用作及物动词(vt.)Our ship stemmed on against the current.我们的船逆流而上。