stem
stem是什么意思、stem怎么读
读音：[stem]
[stem]
stem 基本解释
n. (花草的)茎; (花或叶的)梗，柄; (高脚酒杯的)脚; 烟斗柄
v. 阻止; 封堵; 遏止
stem 词性变化
复数：stems过去式：stemmed现在分词：stemming第三人称单数：stems过去分词：stemmed
CET4考研TOEFLIELTSTEM8CET6TEM4GRE
stem 词组短语
- brain stem
- brain-stem
- beam primary antenna sy-stem
- anode stem
- stem lettuce
- stem vowel
- stem-cell research
- alicyclic stem-nucleus
- stem canker
- glass thermometer with etched stem
stem 详细解释
noun
- （花草的）茎；（花或叶的）梗，柄
the main long thin part of a plant above the ground from which the leaves or flowers grow; a smaller part that grows from this and supports flowers or leaves - （高脚酒杯的）脚
the long thin part of a wine glass between the bowl and the base - 烟斗柄
the thin tube of a tobacco pipe - 有…茎（或梗）的
having one or more stems of the type mentioned- a long-stemmed rose
一枝长茎玫瑰
- a long-stemmed rose
- 词干
the main part of a word that stays the same when endings are added to it- ‘Writ’ is the stem of the forms ‘writes’, ‘writing’ and ‘written’.
writ是writes、writing和written三个词的词干。
- ‘Writ’ is the stem of the forms ‘writes’, ‘writing’ and ‘written’.
verb
- 阻止；封堵；遏止
to stop sth that is flowing from spreading or increasing- The cut was bandaged to stem the bleeding.
伤口进行了包扎止血。 - They discussed ways of stemming the flow of smuggled drugs.
他们讨论了遏制走私毒品流通的办法。 - The government had failed to stem the tide of factory closures.
政府没有控制住工厂纷纷倒闭的势头。
- The cut was bandaged to stem the bleeding.
stem 短语用例
stem from sth
- 是…的结果；起源于；根源是
to be the result of sth
stem 习惯用语
n.
- 从船头到船尾
all the way from the front of a ship to the back
from stem to stern
stem 双语例句
- 1、
He told the magazine in an exclusive interview: 'All my problems stem from drink'.
他在接受一家杂志社的独家采访时说：“我所有的问题都是饮酒造成的。” - 2、
The main stem will extend to around 12ft, if left to develop naturally
如果任其自然生长，主干可以长到约12英尺。 - 3、
The administration is trying to stem the flood of refugees out of Haiti and into Florida
政府当局正试图阻止大批难民逃离海地，进入佛罗里达。 - 4、
He said the move would definitely stem the haemorrhage of talent and enterprise from the colony.
他表示这一举措势必会抑制殖民地人才和企业严重流失的现象。 - 5、
The stinging nettle has a square stem and little hairs.
荨麻长有四方茎和细小茸毛。 - 6、
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。 - 7、
He pointed at me with the stem of his pipe
他用烟斗柄指着我。 - 8、
Sedge is similar in appearance to grass but has a solid rather than a hollow stem
莎草看上去和普通的草没什么两样，但其草茎是实芯的而不是空芯的。 - 9、
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。 - 10、
All my problems stem from drink
我所有的问题都源于酗酒。 - 11、
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。 - 12、
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移民的流入。 - 13、
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。 - 14、
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。 - 15、
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。 - 16、
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。 - 17、
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。 - 18、
Correct judgements stem from thorough investigation and study.
正确的判断来源于周密的调查研究。 - 19、
The fleet from stem to stern covered a thousand li,| its pennons and banners filled the sky.
舳舻千里，旌旗蔽空。（苏轼《前赤壁赋》） - 20、
Wild rice stem belongs to herb of marsh of gramineous vivacious perennial root.
茭白属于禾本科多年生宿根沼泽草本植物。 - 21、
The stem of the bird feather is usually hollow.
鸟羽毛的羽轴一般是中空的。 - 22、
In addition to accumulating and preserving these oncogenic scars, a stem cell's enormous proliferative capacity makes it an ideal target for malignancy.
干细胞除了可累积并保存这些致癌突变外，还具有强大的增殖能力，使它成为癌化的理想目标。 - 23、
He developed embryonic stem cells that could produce mice that carried new genetic material.
他发展了胚胎干细胞，此类细胞能够产生携带新遗传物质的小鼠。 - 24、
Objective To establish an efficient method for isolation and culture of mesenchymal stem cells from mouse bone marrow.
目的建立一种从小鼠骨髓中分离培养间充质干细胞的高效方法。 - 25、
The scientists said they developed stem cell lines from two of these cells.
科学家们称他们从这些细胞中的两个细胞中发展了干细胞序列。 - 26、
Mesenchymal stem cells can differentiate into bone, fat, cartilage and other types of cells.
间充质干细胞能分化成骨、脂肪、软骨和其他种类细胞。 - 27、
We will need to finance research in technology innovation and biotechnology, including stem cell research.
我们需要为技术创新和生物技术提供研究资金，其中包括干细胞研究。 - 28、
I sowed countless seeds but I just got three stem lettuce out.
我已经播种了无数的种子，但是我只得到了三个莴笋。 - 29、
And stem cell and nanotechnology research offer real possibilities for the reanimation of tissue.
细胞和纳米技术的研究已经可以提供复活这些组织的可能性。
stem 英英释义
noun
- a turn made in skiing
- front part of a vessel or aircraft
- he pointed the bow of the boat toward the finish line
- cylinder forming a long narrow part of something
- the tube of a tobacco pipe
- (linguistics) the form of a word after all affixes are removed
- thematic vowels are part of the stem
- a slender or elongated structure that supports a plant or fungus or a plant part or plant organ
verb
- remove the stem from
- for automatic natural language processing, the words must be stemmed
- stop the flow of a liquid
- staunch the blood flow
- stem the tide
- 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