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

• VERB 起源于;来自;由…造成
  If a condition or problemstems fromsomething, 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。
• VERB 阻止;遏制;制止
  If youstemsomething, 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。
• N-COUNT (植物的)秆，茎，梗
  Thestemof 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。
• (酒杯的)颈，柄脚
  Thestemof a wine glass is the long thin part which connects the bowl to the base.
• N-COUNT (烟斗)柄
  Thestemof 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。
• (语法中的)词干
  In grammar, thestemof a word is the main part of it, which does not change when the ending changes.
• PHRASE 从船首到船尾
  If something happensfrom stem to sternon 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。

双语例句

• 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。
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。
• In the lunar calendar, the years are designated by the Heavenly Stems and Earthly Branches.
  阴历用干支纪年。
• Her interest in flowers stems from her childhood in the country.
  她喜欢花起始于童年乡居期间。
• 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。