Stem
[ st?m ]
第2級(jí)
其它 Other
n. （花草的）莖;詞干;（高腳酒杯的）腳;煙斗柄;
vt. 遏制[阻止]（液體的流動(dòng)等）;阻止;封堵;遏止;
?? 例句
Our hopes stem from our previous achievements.
我們的希望源于我們從前的成就。
The connecting rod may drive a valve stem directly.
連桿可以直接帶動(dòng)閥門的把柄。
When you swim up stream, you have to stem the current.
當(dāng)你往上游游的時(shí)候,你得頂著水流而上。
I couldn't stem the bleeding.
我無法止住流血。
In tubers from such potatoes stem mottle symptoms are rarely observed.
由這類馬玲薯產(chǎn)生的塊莖中莖斑駁癥狀不易觀察到。
?? 聯(lián)想助記
【串】科學(xué)家制訂了研究莖(stem)的步驟(step),確定了每個(gè)項(xiàng)月(item),決不中途停止(stop)
【記】※ steam-蒸汽,stem-莖:蒸汽從樹莖中冒出來
※ stem-莖,step-臺(tái)階:竹的主莖節(jié)巴多,好象層層的臺(tái)階
※ st-拼音“石頭”,em-拼音“惡魔”:石頭在惡魔頭上種了一根莖(惡魔發(fā)現(xiàn)石頭長(zhǎng)出了莖)
? 同義詞
?? 詞根
?? 牛津釋義
stem
n
1
(a) main central part of a plant, bush or tree coming up from the roots, from which the leaves or flowers grow （花草的）莖; （樹木的）干. =>illus at fungus 見 fungus 插圖.
(b) part of a leaf, flower or fruit that joins it to the main stalk or twig （葉片、 花朵或果實(shí)的）梗, 柄. =>illus at App 1 見附錄1插圖, page ii.
2 thin stem-shaped part of sth, esp the narrow part of a wineglass between the base and the bowl or the part of a tobacco pipe between the mouthpiece and the bowl 莖狀部分; （尤指）高腳酒杯的頸, 煙斗柄.
3 (grammar) root or main part of a noun or verb from which other parts or words are made, eg by altering the endings 詞干.
4 (fml 文) main line of descent of a family 血統(tǒng).
5 (idm 習(xí)語(yǔ)) from ,stem to `stern from the front to the back (esp of a ship) 從頭到尾; （尤指）從船首到船尾
The liner has been refitted from stem to stern. 那艘班輪已經(jīng)全面整修. stem, v (-mm-) (phr v) stem from sth arise from sth; have sth as its origin or cause 來自或起源於某事物; 由某事物造成
discontent stemming from low pay and poor working conditions 因工資低、 工作條件差而產(chǎn)生的不滿情緒.
stem v (-mm-) [Tn]
restrain or stop (the flow of liquid, etc) 遏制, 阻止（液體流動(dòng)等）
bandage a cut to stem the bleeding 用 帶包扎傷口止血
stem the flow of water from a burst pipe 止住破裂的水管中流出的水
(fig 比喻) The government are unable to stem the tide of popular indignation. 政府壓制不住公憤.
?? 考研助記
音：抬木，抬轎子的木頭，是根木樁子
?? 擴(kuò)展釋義
*[stem]n. 莖, 干, 柄, 船首, 血統(tǒng), 堵塞物vt. 摘掉莖, 裝柄于, 阻止, 堵住, 逆行vi. 堵住, 逆行【化】 敵稗【醫(yī)】 莖, 干相關(guān)詞組: from stem to stern
?? 醫(yī)學(xué)釋義
柄，桿，把
?? 同詞根單詞
?? 同為「高中」詞匯
查看全部高中詞匯 ›??? 情景例句
Against Carter Boswell?
和Carter Boswell競(jìng)選？
Hope is a good breakfast, but a bad supper.
希望是美味的早點(diǎn)，但又是難咽的晚餐。
Don't give me your excuses.
別找借口。