stem是什么意思？

意思是：阻止。

英［stem］

释义：

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

abbr.理工科的统称（science，technology，engineering，math）

［复数：stems；第三人称单数：stems；现在分词：stemming；过去式：stemmed；过去分词：stemmed］

短语：

stem cell［细胞］干细胞；造血干细胞；间充质干细胞；全能性细胞

扩展资料：

词语辨析：stem，arise，originate，spring

v.（动词）

这组词均可表示“出现”。

1、spring强调经过一段时间或准备后突然出现。

2、arise强调产生的事实，暗示从无到有，也指某事物导致的结果。

3、originate指来源于特定的根源或起点。

4、stem指合乎自然规律地产生，也指在某人或某事物的影响下产生或从属于某人或某物发展。

大写英语STEM是什么意思？

stem可以翻译为 “源于”

更多知识如下

stem

英 [stem] 美 [stɛm]

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

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

同近义词

n. 干；[植]茎；船首；血统

birth , blood , stock

vt. 阻止；除去…的茎；给…装柄

block , dispute , prohibit , discourage

vi. 阻止；起源于某事物；逆行

prevent from , head off

同根词

词根： stem

adj.

stemmed 去掉茎或梗的；有茎或梗的；装有…柄的

stemless 无茎的；无梗的

n.

stemmer 抽梗机，除梗器；抽梗工人

v.

stemmed 起源于（stem的过去分词形式）；除去…的茎；给（假花等）装梗

例句

This is a plant stem that has been pithed.

这是一根已经除去木髓的植物的茎。

The plant's stem curled round the branches of the tree.

那植物的茎缠绕在树枝上。

These spiral vessels are part of a banana plant stem.

这些螺旋形的船只是香蕉植物茎的一部分。

stem是什么意思

stem

中频词，你记住了吗？

英 [stem]美 [st#603;m]

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

复数： stems

过去式： stemmed

过去分词： stemmed

现在分词： stemming

第三人称单数： stems

派生词：stemless stem-like

双语例句:1. Twist the string carefully around the second stem with the other hand. 用另外一只手小心地把细绳缠绕到第二根茎上。

2. Cut them off cleanly through the stem just below the node. 就从茎节下面，沿茎干把它们全砍掉。

3. The stinging nettle has a square stem and little hairs. 荨麻长有四方茎和细小茸毛。

4. He chewed the stem of his pipe and eyed her sceptically.他嘴里衔着烟斗柄，满腹狐疑地打量着她。

5. Make a slit in the stem about half an inch long. 在树干上切一道大约半英寸长的口子。

以下是分词性的例句：

1.VERB 起源于;来自;由…造成                                               

动词

【语法信息】：V from n

All my problems stem from drink...

我所有的问题都源于酗酒。

Much of the instability stems from the economic effects of the war.

不稳定局面多半是由战争对经济的影响造成的。

2.VERB

动词

【语法信息】：V n

【语域标签】：FORMAL 正式

Austria has sent three army battalions to its border with Hungary to stem the flow of illegal immigrants...

奥地利已派出 3 个营的兵力去本国和匈牙利交界的边境地区阻止非法**的流入。

The authorities seem powerless to stem the rising tide of violence...

当局似乎无力阻止愈演愈烈的暴力活动。

He was still conscious, trying to stem the bleeding with his right hand.

他依然清醒，正试图用右手止血。

3.N-COUNT

可数名词

He stooped down, cut the stem for her with his knife and handed her the flower.

他弯下腰，用刀替她将花茎割断，然后将花递给她。

4.N-COUNT

可数名词

5.N-COUNT

可数名词

He chewed the stem of his pipe and eyed her sceptically.

他嘴里衔着烟斗柄，满腹狐疑地打量着她。

6.N-COUNT

可数名词

7.PHRASE

短语

【搭配模式】：usu PHR after v

A South African television report said the ship was ablaze from stem to stern.

南非一则电视新闻报道称，那艘船从头到尾都着了火。

英语stem词干的定义

stem1 [stem]

n.

1.(植物的)茎

2.(树木的)干

3.(叶、花、果的)柄

4.叶柄；花梗

5.(高脚酒杯的)柄脚

6.烟斗柄

7.(表上发条用的)转柄

8.(锁内的)锁芯

9.阀杆；导杆

10.家世,家谱；血统

11.一串香蕉

12.[美国俚语](铁路的)主要干线；主要街道

13.[美国俚语]大烟烟枪

14.[用复数][美国俚语]双腿

15.【鸟类学】羽干

16.【造船】船首；艏材,艏柱

17.【印刷】(字体的)粗黑体

18.【电子学】电子管心柱；晶体管管座

19.【音乐】(乐谱音符的)符尾

20.【语言学】词干

vt.

1.除去…的茎(或梗、柄等)：

The strawberries should be stemmed before they are tinned.

装听之前,这些草莓得去掉果梗.

2.给(假花等)装梗；给…装杆(或柄)：

to stem a watch

给表装转柄

vi.

起源于,来自；由…造成(与from 连用):

This plan stems from what we talked about.

该项计划源自我们的会谈.

Your errors stem all from your carelessness.

你犯的错误全都是由于你的粗心.

近义词:

rise .

变形:

vt.stemmedstemming

stem2 [stem]

vt.

1.止住,阻止,遏止：

to stem the fire circumstances

止住了火势

to stem one's anger

压住怒火

2.拦住,挡住,堵住：

to stem the river with a dam

筑坝拦河

to stem the enemy attack

挡住敌方的进攻

3.堵塞住,塞住(洞穴、接头等)；密封：

to stem a hole

塞住洞穴

to stem the gas pipe with a plug

用塞子密封住煤气管道

4.逆…而行,顶着…而上：

to stem the wind

逆风而上

5.[苏格兰英语]止住(流血)

6.【滑雪】转动(滑雪屐)以停止滑行

vi.

1.止住,停止；堵塞：

The rain has stemmed.

雨已经停了.

2.逆流而上：

to stem up the stream

逆流溯源

3.【滑雪】转动滑雪屐以停滑(或减速)

n.

1.阻挡物；堵塞物；堤坝

2.【滑雪】转动滑雪屐的动作

变形:

vt.stemmedstemming

stem和stalk有什么不同?

stem:[ stem ]

n.茎,干,船首

v.堵住,阻止,起源于

词形变化:

动词过去式:stemmed 过去分词:stemmed 现在分词:stemming 第三人称单数:stems

例句与用法:

1.Our ship stemmed on against the current.

我们的船逆流而上.

2.She bought some roses with long stems.

她买了一些枝干很长的玫瑰花.

3.The liner has been refitted from stem to stern.

那艘班轮已经全面整修.

4.A slight curving or circular movement in a stem,as of a twining plant,caused by irregular growth rates of different parts.

转头运动植物茎的轻微弯曲或扭转的生长,象双生树那样,由不同部分的不规则生长速度引起

5.She sat twirling the stem of the glass in her fingers.

她坐在那里用手指捻著玻璃杯的杯颈.

名词stem:

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

同义词：root,root word,base,theme,radical

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

同义词：stalk

3.cylinder forming a long narrow part of something

同义词：shank

4.the tube of a tobacco pipe

5.front part of a vessel or aircraft

同义词：bow,fore,prow

6.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

动词stem:

1.grow out of,have roots in,originate in

2.cause to point inward

3.stop the flow of a liquid

同义词：stanch,staunch,halt

4.remove the stem from

stalk:[ stɔ:k ]

n.茎,追踪,高视阔步

v.悄悄靠近,蔓延,高视阔步

词形变化:

形容词:stalky 名词:stalker 动词过去式:stalked 过去分词:stalked 现在分词:stalking 第三人称单数:stalks

例句与用法:

1.The infatuated fan stalked the celebrity.

那位着了迷的崇拜者追踪这位名人.

2.He cut off the flowers at the stalk with a pair of scissors.

他用剪子连花带茎都剪下来.

3.He moved like a tiger stalking its prey.

他像老虎一样悄悄潜近他的猎物.

4.He stalked angrily out of the room.

他悻悻然踱出了房间.

5.Fear stalks (through) the town at night.

入夜后,镇上笼罩著恐怖的气氛.

6.Remove the stalks from the cherries before you eat them.

吃樱桃前要先把梗儿去掉.

7.Ghosts are said to stalk the castle walls.

据说有鬼魂在这座城堡的墙上出没.

名词stalk:

1.material consisting of seed coverings and **all pieces of stem or leaves that have been separated from the seeds

同义词：chaff,husk,shuck,straw,stubble

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

同义词：stem

3.a hunt for game carried on by following it stealthily or waiting in ambush

同义词：stalking,still hunt

4.the act of following prey stealthily

同义词：stalking

5.a stiff or threatening gait

同义词：angry walk

动词stalk:

1.walk stiffly

2.follow stealthily or recur constantly and spontaneously to

同义词：haunt

3.go through (an area) in search of prey