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stem

英 /stem/美 /stem/
  • 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）
复数stems
第三人称单数stems
现在分词stemming
过去式stemmed
过去分词stemmed
CET4CET6考研IELTSTOEFLGREGMAT

词语例句

  1. （植物、灌木的）茎，干cn.

    六级

    • The plant's stem is marked with thin green longitudinal stripes.

      这种植物的茎上长有绿色细长条纹。

    • Native farmers were hostile towards the wheat programme because of serious crop losses from 1939 to 1941 due to stem rust.

      当地的农民对小麦计划怀有敌意，因为1939年至1941年间小麦由于茎锈病而严重减产。

  2. （高脚酒杯的）柄脚cn.

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

      她坐在那里用手指捻动着高脚酒杯的柄脚。

  3. （语法中的）词干cn.

    • ‘Writ’ is the stem of the forms ‘writes’, ‘writing’ and ‘written’.

      writ是writes、writing和written三个词的词干。

  4. 烟斗柄cn.

    • He pointed at me with the stem of his pipe.

      他用他的烟斗柄指着我。

  1. Stem cell research is supported by many doctors.
    干细胞研究得到很多医生的支持。
    来自《柯林斯英汉双解大词典》
  2. The plant's stem is marked with thin green longitudinal stripes.
    这种植物的茎上长有绿色细长条纹。
    来自《牛津词典》
  3. 'Writ' is the stem of the forms 'writes', 'writing' and 'written'.
    writ是writes、writing和written三个词的词干。
    来自《牛津词典》

相关短语

  • stem cell
    干细胞；造血干细胞；间充质干细胞；全能性细胞
  • stem-loop
    茎环；结构；颈环
  • Stem Mut
    阀杆螺母；阀杆螺丝帽
  • stem from
    来自；来自于
  • stem rust
    秆锈病；杆锈

词语扩展

n.
birthbloodstock
干；[植]茎；船首；血统
vt.
blockdisputeprohibitdiscourage
阻止；除去…的茎；给…装柄
vi.
prevent fromhead off
阻止；起源于某事物；逆行
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

词义分布

茎
55%
干
16.7%
阻止
11.7%
柄
4.8%
茎秆
3.9%
梗
2.8%
词干
2.1%
茎杆
1.1%
主茎
1.1%
船首
0.9%

英英释义

  • n.(linguistics) the form of a word after all affixes are removed
  • n.a slender or elongated structure that supports a plant or fungus or a plant part or plant organ
  • n.cylinder forming a long narrow part of something
  • n.the tube of a tobacco pipe
  • n.front part of a vessel or aircraft
  • n.a turn made in skiing; the back of one ski is forced outward and the other ski is brought parallel to it
  1. n.
    the long, thin part of a plant that the flowers and leaves grow on
    茎；梗；柄
    • He cut the stem and gave her the flower.
      他剪断茎，把花递给她。

词源

  • stem茎，柄，梗，词干
    来自古英语 stemn,植物茎，树干，来自 Proto-Germanic*stamniz,站立，来自 PIE*sta,站立，词 源同 stand,state.引申诸相关词义。