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词汇 stem
释义

stem

noun
 
/stem/
/stem/
Idioms
  1. enlarge image
     
    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(花草的)茎;(花或叶的)梗,柄
    • long, trailing stems of ivy常春藤长长的蔓生茎
    • a tall plant with branching stems有分枝茎的高大植物
    • There are several leaves on each stem.每一根茎上都有几片叶子。
    • When the bush has finished flowering, cut back all the stems.等这丛灌木开完花后,把所有的茎干都修剪一下。
    Topics Plants and treesc1
    Collocations Dictionaryadjective
    • long
    • tall
    • short
    verb + stem
    • break
    • cut
    • cut back
    stem + verb
    • break
    preposition
    • on a/​the stem
    phrases
    • the base of the stem
  2. enlarge image
    the long, thin part of a wine glass between the bowl and the base(高脚酒杯的)脚
  3. the thin tube of a tobacco pipe烟斗柄
  4. -stemmed
    (in adjectives构成形容词) having one or more stems of the type mentioned有…茎(或梗)的
    • a long-stemmed rose一枝长茎玫瑰
    • slender-stemmed wine glasses细茎酒杯
  5. (grammar语法) the main part of a word that stays the same when endings are added to it词干
    • ‘Writ’ is the stem of the forms ‘writes’, ‘writing’ and ‘written’.writ 是 writes、writing 和 written 三个词的词干。
  6. 词源noun Old English stemn, stefn, of Germanic origin; related to Dutch stam and German Stamm. Sense (4) is related to Dutch steven, German Steven.
Idioms
from stem to stern
  1. all the way from the front of a ship to the back从船头到船尾

stem

verb
 
/stem/
/stem/
动词形式
present simple I / you / we / they stem
/stem/
/stem/
he / she / it stems
/stemz/
/stemz/
past simple stemmed
/stemd/
/stemd/
past participle stemmed
/stemd/
/stemd/
-ing form stemming
/ˈstemɪŋ/
/ˈstemɪŋ/
Phrasal Verbs
  1. stem something to stop something that is flowing from spreading or increasing阻止;封堵;遏止
    • The cut was bandaged to stem the bleeding.伤口已包扎止血。
    • 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的倒闭潮。
    • The reforms failed to stem social discontent.改革未能阻止社会上不满情绪的曼延。
    词源stem from something. Old English stemn, stefn, of Germanic origin; related to Dutch stam and German Stamm. Sense (4) is related to Dutch steven, German Steven. verb Middle English (in the sense ‘to stop, delay’): from Old Norse stemma, of Germanic origin.

STEM

abbreviation
/stem/
/stem/
  1. science, technology, engineering and mathematics
    (used to refer to these subjects as a group in the context of education and jobs)
    词干:科学,技术,工程和数学(用于在教育和工作中将这些科目归为一类)
    • We need to encourage more girls to enrol on STEM courses.我们需要鼓励更多的女孩报名参加STEM课程。
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