stem

n. 干；茎；船首；血统

vt. 阻止；除去…的茎；给…装柄

vi. 阻止；起源于某事物；逆行

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

[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

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。

权威例句

stem

stem: The stem [OE] of a tree is etymologically the upright part, the part that ‘stands’ up. The word comes from prehistoric Germanic *stamniz, a derivative of the base *sta- ‘stand’ (which also produced English stand). The application to the ‘front of a vessel’ (as in from stem to stern) comes from the notion of an ‘upright beam’ at the prow (and originally the stern also) of a boat, which dates back to the Anglo-Saxon period. Stem ‘stop’ [13] was borrowed from Old Norse stemma, a descendant of prehistoric Germanic *stamjan.This was formed from the base *stam- ‘stop, check’, which also produced English stammer and stumble.=> stand, statue; stammer, stumble

stem (n.)

Old English stemn, stefn "stem of a plant, trunk of a tree," also "either end-post of a ship," from Proto-Germanic *stamniz (cognates: Old Saxon stamm, Old Norse stafn "stem of a ship;" Danish stamme, Swedish stam "trunk of a tree;" Old High German stam, German Stamm), from suffixed form of PIE root *sta- "to stand" (see stet). Meaning "support of a wineglass" is from 1835. Meaning "unchanging part of a word" is from 1830. Stems slang for "legs" is from 1860. The nautical sense is preserved in the phrase stem to stern "along the full length" (of a ship), attested from 1620s. Stem cell attested by 1885.

stem (v.1)

"to hold back," early 14c., from a Scandinavian source, such as Old Norse stemma "to stop, dam up; be stopped, abate," from Proto-Germanic *stamjan (cognates: Swedish stämma, Old Saxon stemmian, Middle Dutch stemon, German stemmen "stop, resist, oppose"), from PIE root *stem- "to strike against something" (cognates: Lithuanian stumiu "thrust, push"). Not connected to stem (n.). Related: Stemmed; stemming. Phrase to stem the tide is literally "to hold back the tide," but often is confused with stem (v.2) "make headway against." Verbal phrase stems from (1932, American English), perhaps is from stem (v.) in the sense "to rise, mount up, have origin in" (1570s), or is influenced by or translates German stammen aus, probably from a figurative sense represented by English stem (n.) in the sense of "stock of a family, line of descent" (c. 1540; cognates: family tree, and German stammvater "tribal ancestor," literally "stem-father").

stem (v.2)

"make headway by sailing, head in a certain course," late 14c., literally "to push the stem through," from stem (n.) in the "ship post" sense (here the post at the prow of the ship). Related: Stemmed; stemming.

1. graduating stem

均衡节制杆

-- 来源 -- 英汉 - 翻译参考[网络]

2. Stem – machined stem has a backseat design.

阀杆-经过机加工的阀杆具有后座结构。

-- 来源 -- 网友提供

3. stem family

主干家庭

-- 来源 -- 英汉 - 短句参考

4. thermometer stem

温度计枢轴

-- 来源 -- 英汉 - 翻译参考[网络]

5. stem hawsepipe

艏柱锚链筒

-- 来源 -- 英汉 - 短句参考

6. stem vegetables

茎菜类蔬菜

-- 来源 -- 英汉 - 翻译参考[网络]

7. stem absorption

母体吸收

-- 来源 -- 英汉 - 翻译参考[网络]

8. honeysuckle stem

忍冬藤；金银藤；双花藤

-- 来源 -- 英汉 - 翻译参考[网络]

9. stem measurement

树干测定

-- 来源 -- 英汉 - 翻译参考[网络]

10. underground stem

地下茎

-- 来源 -- 英汉 - 翻译参考[网络]