stems

英 [stemz] 美 [stemz]

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的第三人称单数和复数

柯林斯词典

  1. VERB 起源于;来自;由…造成
    If a condition or problem stems from something, it was caused originally by that thing.
    1. All my problems stem from drink...
      我所有的问题都源于酗酒。
    2. 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 阻止;遏制;制止
    If you stem something, you stop it spreading, increasing, or continuing.
    1. 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。
    2. 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。
    3. 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 (植物的)秆，茎，梗
    The stem of a plant is the thin, upright part on which the flowers and leaves grow.
    1. 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. (酒杯的)颈，柄脚
    The stem of a wine glass is the long thin part which connects the bowl to the base.
    1. N-COUNT (烟斗)柄
      The stem of a pipe is the long thin part through which smoke is sucked.
      1. 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。
    2. (语法中的)词干
      In grammar, the stem of a word is the main part of it, which does not change when the ending changes.
      1. PHRASE 从船首到船尾
        If something happens from stem to stern on a boat, it involves the whole of the boat.
        1. 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。
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      双语例句

      1. It is easy to detach the currants from the stems
        很容易就能把醋栗从梗上摘下来。
      2. Woodlice attack living plants and gnaw at the stems
        木虱会侵害活体植物并啃咬它们的茎。
      3. 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。
      4. Fearlessness stems from selflessness.; Only the selfless can be fearless.
        无私故能无畏。
      5. In the lunar calendar, the years are designated by the Heavenly Stems and Earthly Branches.
        阴历用干支纪年。
      6. These straggly stems should be pruned off.
        这些蔓生枝条该剪了。
      7. The bleak outlook stems from a confluence of factors.
        暗淡的前景是一系列因素合力所致。
      8. Lotus stems spring from the selfsame root.
        莲藕同根。
      9. Her interest in flowers stems from her childhood in the country.
        她喜欢花起始于童年乡居期间。
      10. The problem stems from the ambiguity.
        这个问题源自于歧义性。
      11. Flowers, leaves and stems grow above ground.
        花，叶和茎长在地上。
      12. Fungus affecting leaves and stems of wheat. The cottage was smothered in green foliage.
        影响小麦叶和茎的菌类。这间小屋被绿叶所覆盖。
      13. Genus of Asiatic woody vines with milky sap in leaves and stems.
        叶子和茎干里有乳状汁液的亚洲木质藤本属。
      14. African shrub having decumbent stems and slender yellow honey-scented flowers either solitary or in pairs.
        非洲灌木，有横卧的茎和苗条的黄色的有蜂蜜香的叶子，或单独或成双生长。
      15. Of the gray-green color of sage leaves. a plant having leaves and stems covered with dust-like down.
        指像鼠尾草叶子一样的灰绿色。一种叶和茎覆被灰尘状绒毛的植物。
      16. A plant having leaves and stems covered with dust-like down.
        细绒毛的或似细绒毛的一种叶和茎覆被灰尘状绒毛的植物。
      17. Stems provide mechanical support for leaves in erect plants and are an axis for attached leaves in horizontal plants.
        在直立生长的植物上，茎为叶子提供了机械支撑，在水平方向生长的植物上，茎为叶子着生的中轴。
      18. Genus of yellow-flowered Australian unarmed or spiny shrubs without true leaves but having leaflike stems or branches.
        没有真正叶子但长有象叶子一样的茎干和分枝，还有黄花的澳大利亚的无刺的或多刺的灌木的属。
      19. Let's pick the berries over for stems and leaves.
        让我们来挑检一下浆果，将梗和叶子拣掉。
      20. Study on Appraisal and Extraction of Flavonoids from the Stems of Perilla Frutescens;
        本文重点研究了吉林省主要经济和油料作物紫苏的高产栽培技术。
      21. They are located in tissues ( the apical meristems) at the growing points of roots and stems.
        它们位于根和茎的生长点组织（顶端分生组织）中。
      22. Stems with prominent nodes and internodes.
        茎有显著的节和节间。
      23. Some grasses have stems and leaves.
        有些草皮品种长有茎和叶。
      24. Green stems, a flower bud and leaves began to grow through the ground under the snow.
        绿茎，花芽和树叶开始通过地面生长在雪下。
      25. Succulents, such as cacti, store water in large parenchyma cells in swollen stems and leaves.
        肉质植物，如仙人掌，可以将水分储藏在膨大的茎和叶中的基本组织细胞中。
      26. Fungus affecting leaves and stems of wheat.
        影响小麦叶和茎的菌类。
      27. Any of various leafy plants or their leaves and stems eaten as vegetables.
        各种多叶植物或其叶和茎可作蔬菜食用的植物。
      28. A plants of the genus Pilea having drooping green flower clusters and smooth translucent stems and leaves.
        冷水花属植物，有下垂的绿色花串和光滑的半透明的茎干及叶子。
      29. Small family of lower ferns having nearly naked stems and minute scalelike leaves.
        低等蕨类植物小科具有接近赤裸的茎和微小的鳞状的叶。
      30. Small tough woody zamia of Florida and West Indies and Cuba; roots and half-buried stems yield an arrowroot.
        佛罗里达、西印度和古巴的一种小而硬的木质泽米；根部和一半的茎部生长竹芋。
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