stem

英音[ stem ] 美音[ stem ]
茎
常用释义
n. （植物、灌木的）茎，干；（高脚酒杯的）柄脚；（语法中的）词干；烟斗柄；主干；船头，艏柱；（机械装置的）阀杆，导杆，棒；<古，文>血统；<美>（手表的）发条转柄；（文字的）干线，（音符的）符干；<美，非正式>鸦片烟枪
v. 阻止，遏制；止住（液体的流动）；起源于；去梗，去柄；（船）逆流而行；（滑雪）向外转动（滑雪屐）以便转弯（或减速）；给……装柄
abbr. （STEM）理工科的统称（science, technology, engineering, and mathematics）

扩展信息

阀杆
波纹管截止阀_百度百科 ... 垫片 gasket 阀杆 stem 柔性石墨 Flexible graphite、PTFE ...
茎
托福听力分类词汇汇总_百度文库 ... rosette （叶的）丛生 stem 茎 stalk 杆 ...
词干
（2） 词干(stem) 指的是未经词形变化的原形词。例如：动词to impede(hinder)的词根是impede,必须注意，词的词形变化（infle…
柄
<3>口柄（Stem）――连接斗柄，此部分可拆出，以方便清洁。<4>榫（Tenon）――口柄嵌入斗柄，使之相连接的凸榫<5>烟 …
茎干
职称英语考试大纲(B级) - 豆丁网 ... steep a. 陡峭的 stem n. 茎，干；柄，把，颈 stereo a. 立体声的 ...
船首
100句记7000单词带音标 - 豆丁网 ... combined 组合的, 结合 的 42. stem 茎,干,船首 stony 石头的(石质的) ...

考试重点

中考
考频：近四年出现11次
n. 茎; 主干
高考
考频：近六年出现5次
n/v. 茎; 主干; 去茎叶
四级
考频：近五年出现5次
n/v. 茎; 主干; 去茎叶 
v. (问题/怒气)起源于
六级
考频：近五年出现7次
n/v. 茎; 主干; 去茎叶 
v. (问题/怒气)起源于
考研
考频：近六年出现3次
v. 起源于 
v. 阻止; 遏制 

例句

THE 20S ARE LIKE the stem cell of human development, the pluripotent moment when any of several outcomes is possible.

It would be better to derive human stem cell lines from the body's mature cells, he said, a method that researchers are still working on.

"So it is going to be interesting to see if prions play any role in demyelinating diseases that stem from the brain, " he says.

In monkeys, the stem might not have bound to cells or might have latched on in a manner that did not trigger a response.

The stem of everyone eager, the sweat bedewed clothes, flow full ZHANG ZHANG's smiling face, hope the whose on the faces is all red all.

For all the innovation of the past decade, nobody had been able to stem the flow of money out of the business.

He said authorities would collaborate with other jurisdictions to stem the flow of drugs at the source.

Straight ahead of her, as though it were a rose on a stem .

He observed that, at night, a plant's leaves drooped next to the sides of the stem but in the morning they rose as if to worship the sun.

Professor Lovell-Badge, however, said the Chinese paper did not prove that the eggs that gave rise to babies came from the stem cells.

We believe that if you can't stem the bleeding, you risk losing up to 4% of your market share within the next six to 12 months.

The reason embryonic stem cells are valued by scientists is that the cells' descendants can turn into any other sort of body cell.

If it were only a flower, round and small and sweet, I could pluck it from its stem to set it in your hair.

In the forests, trees in the wind might be induced stem bending even destroyed, thus affecting the quality and yield of wood.

But the general thinking seems to be that cancer stem cells represent a small population of the cells in a tumor.

Councils are trying to stem the problem by using ductile steel for replacements, which has no scrap value.

The beautiful maiden took the flax from her head, wound it round the stem of a slender birch, grasped the spindle, and began to spin.

常用短语

stem cell
stem cell - 干细胞，骨髓干细胞
stem from
stem from - 起源于
brain stem
brain stem - 脑干
drill stem
drill stem - 钻柱；钻杆；钻具
main stem
main stem - [美俚]干线；主街
valve stem
valve stem - 【机】阀杆
v.+n.
stem tide, stem flow, stem rise, stem current
v.
accelerate

同义词

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)

stemmed adj 去掉茎或梗的；有茎或梗的；装有…柄的
stemless adj 无茎的；无梗的
stemmer n 抽梗机，除梗器；抽梗工人
stemmed v 起源于（stem的过去分词形式）；除去…的茎；给（假花等）装梗

更新时间：2025-08-07 02:07