• stem

    英:[stem]  
    美: [stɛm] 

    stem 基本解释

    • n. 干;茎;船首;血统
    • vt. 阻止;除去…的茎;给…装柄
    • vi. 阻止;起源于某事物;逆行

    stem 词态变化

    复数: stems;第三人称单数: stems;过去式: stemmed;过去分词: stemmed;现在分词: stemming;

    stem 中文词源

    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。

    stem 英文词源

    stem
    stem: The stem [OE] of a tree is etymologically the upright part, the part that ‘stands’ up. The word comes from prehistoric Germanic *stamniz, a derivative of the base *sta- ‘stand’ (which also produced English stand). The application to the ‘front of a vessel’ (as in from stem to stern) comes from the notion of an ‘upright beam’ at the prow (and originally the stern also) of a boat, which dates back to the Anglo-Saxon period. Stem ‘stop’ [13] was borrowed from Old Norse stemma, a descendant of prehistoric Germanic *stamjan.

    This was formed from the base *stam- ‘stop, check’, which also produced English stammer and stumble.
    => stand, statue; stammer, stumble
    stem (n.)
    Old English stemn, stefn "stem of a plant, trunk of a tree," also "either end-post of a ship," from Proto-Germanic *stamniz (cognates: Old Saxon stamm, Old Norse stafn "stem of a ship;" Danish stamme, Swedish stam "trunk of a tree;" Old High German stam, German Stamm), from suffixed form of PIE root *sta- "to stand" (see stet).

    Meaning "support of a wineglass" is from 1835. Meaning "unchanging part of a word" is from 1830. Stems slang for "legs" is from 1860. The nautical sense is preserved in the phrase stem to stern "along the full length" (of a ship), attested from 1620s. Stem cell attested by 1885.
    stem (v.1)
    "to hold back," early 14c., from a Scandinavian source, such as Old Norse stemma "to stop, dam up; be stopped, abate," from Proto-Germanic *stamjan (cognates: Swedish stämma, Old Saxon stemmian, Middle Dutch stemon, German stemmen "stop, resist, oppose"), from PIE root *stem- "to strike against something" (cognates: Lithuanian stumiu "thrust, push"). Not connected to stem (n.). Related: Stemmed; stemming. Phrase to stem the tide is literally "to hold back the tide," but often is confused with stem (v.2) "make headway against."

    Verbal phrase stems from (1932, American English), perhaps is from stem (v.) in the sense "to rise, mount up, have origin in" (1570s), or is influenced by or translates German stammen aus, probably from a figurative sense represented by English stem (n.) in the sense of "stock of a family, line of descent" (c. 1540; cognates: family tree, and German stammvater "tribal ancestor," literally "stem-father").
    stem (v.2)
    "make headway by sailing, head in a certain course," late 14c., literally "to push the stem through," from stem (n.) in the "ship post" sense (here the post at the prow of the ship). Related: Stemmed; stemming.

    stem 词组搭配

    from stem to stern

    From one end to another.

    从头到尾

    stem 英文释义

    1. (linguistics) the form of a word after all affixes are removed;
    "thematic vowels are part of the stem"
    2. a slender or elongated structure that supports a plant or fungus or a plant part or plant organ
    3. cylinder forming a long narrow part of something
    4. the tube of a tobacco pipe
    5. front part of a vessel or aircraft;
    "he pointed the bow of the boat toward the finish line"
    6. a turn made in skiing; the back of one ski is forced outward and the other ski is brought parallel to it

    stem 双语例句

    1. Twist the string carefully around the second stem with the other hand.
    用另外一只手小心地把细绳缠绕到第二根茎上。

    来自柯林斯例句

    2. Cut them off cleanly through the stem just below the node.
    就从茎节下面,沿茎干把它们全砍掉。

    来自柯林斯例句

    3. The stinging nettle has a square stem and little hairs.
    荨麻长有四方茎和细小茸毛。

    来自柯林斯例句

    4. 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。

    来自柯林斯例句

    5. Make a slit in the stem about half an inch long.
    在树干上切一道大约半英寸长的口子。

    来自柯林斯例句

    stem 实用场景例句

    a long-stemmed rose
    一枝长茎玫瑰

    牛津词典

    ‘Writ ’ is the stem of the forms ‘writes ’, ‘writing ’ and ‘written ’.
    writ是writes、writing和written三个词的词干。

    牛津词典

    The cut was bandaged to stem the bleeding.
    伤口进行了包扎止血。

    牛津词典

    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。

    牛津词典

    The government had failed to stem the tide of factory closures.
    政府没有控制住工厂纷纷倒闭的势头。

    牛津词典

    All my problems stem from drink...
    我所有的问题都源于酗酒。

    柯林斯高阶英语词典

    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。

    柯林斯高阶英语词典

    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。

    柯林斯高阶英语词典

    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。

    柯林斯高阶英语词典

    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。

    柯林斯高阶英语词典

    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。

    柯林斯高阶英语词典

    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。

    柯林斯高阶英语词典

    There are two types of stem growth habit and floral initiation in soybean.
    大豆茎生长习性和花的发生有两种类型.

    辞典例句

    Behavior of Mesenchymal Stem Cells in the Chemical Microenvironment of the Intervertebral Disc.
    椎间盘化学微环境中干细胞的行为.

    期刊摘选

    Branch A lateral stem arising from another stem of the same form.
    枝:同种类型的茎上生出的侧茎.

    期刊摘选

    I've read the book from stem to stern.
    这本书我已从头至尾读完.

    辞典例句

    Correct decisions stem from correct judgements.
    正确的决心来源于正确的判断.

    《现代英汉综合大词典》

    Cut the stem cleanly, just beneath a leaf joint.
    把茎切整齐点, 正好切在叶根下.

    《简明英汉词典》

    The stem of the mushroom is broken.
    这只蘑菇的梗折断了.

    《简明英汉词典》

    The ship was in a blaze from stem to stern.
    整艘船从头到尾都着火了.

    《简明英汉词典》

    They searched the ship from stem to stern , looking for the missing suitcase.
    他们对船进行了彻底的搜索, 寻找那只遗失的手提箱.

    《简明英汉词典》

    You must stem the flow of blood from the wound.
    你必须止住伤口流血.

    《简明英汉词典》

    His efforts to stem the tide of violent crime have been as effective as Canute's.
    他遏制暴力犯罪增长的努力一直是螳臂当车。

    《牛津高阶英汉双解词典》

    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。

    《牛津高阶英汉双解词典》

    a glass with a slender stem
    高脚酒杯

    《牛津高阶英汉双解词典》

    Twist the string carefully around the second stem with the other hand.
    用另外一只手小心地把细绳缠绕到第二根茎上。

    柯林斯例句

    He told the magazine in an exclusive interview: "All my problems stem from drink".
    他在接受一家杂志社的独家采访时说:“我所有的问题都是饮酒造成的。”

    柯林斯例句

    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。

    柯林斯例句

版权所有©52查   网站地图