stem是什麼意思_音標_用法_例句

簡單釋義：

n. （花草的）莖；柄；（高腳酒杯的）腳；煙斗柄

adj. 有莖[梗]的；裝有小柄的；去掉莖(或梗)的；去掉莖[梗,柄]的

v. 阻止；封堵；遏止

abbr. (=Scanning transmission electron microscope)掃描透射式電子顯微鏡

網絡 閥桿；詞幹；莖幹

變形：

複數：stems  現在分詞：stemming  過去分詞：stemmed  

完整釋義：

n.

1.(草木的)莖,干,梗;葉柄,花梗,果柄
2.(工具的)柄;把,桿
3.高酒杯的酒腳,煙斗柄;鴉片煙槍
4.(手錶,懷錶的)轉柄
5.閘住,堵住,止住
6.轉動滑雪屐停止滑動
7.〔美俚〕腿
8.堵塞物,壩
9.【語言學】詞幹
10.【動物;動物學】羽軸

v.

1.除掉…的梗莖
2.給…裝上柄、桿;給(假花等)裝上梗柄
3.〔美國〕起源於,起因於,(由…)發生,來自
4.閘住,堵住(水等);遏止,防止,壓住
5.堵住,止住
6.抵抗,反抗,逆(流)而行,頂着水面上
7.轉動滑雪屐停止滑行
8.逆行
9.(船)逆(風)開行
10.【滑雪】轉動(滑雪屐)以停止滑雪

abbr.

1.Scanning transmission electron microscope 掃描透射式電子顯微鏡

例句：

1. The Republican party cannot be a tool of the evangelical movement, on evolution, stem cells and a host of other issues.
   共和黨不能僅僅成為福音運動、進化論、幹細胞和其他一系列爭議性問題的工具。

2. He said authorities would collaborate with other jurisdictions to stem the flow of drugs at the source.
   李明逵又表示，警方會與外地執法部門加強合作，從源頭上堵截毒品。

3. He was treated over a ten-month period by researchers at the US Stem Cell Institute, where he made a marked recovery.
   他受到了一個由研究人員十月份在美國幹細胞研究所，在那裡他取得了顯着的恢復時期。

4. Since the last time we met, I've gone to G to work for a biotechnology company as a stem cell researcher.
   自從你沒有再見到我，我是到了G為一家生物公司做幹細胞的研究。

5. He took the drug patients were to take and underwent the stem cell extraction process.
   他服用病人將服用的藥物，並且接受幹細胞提取過程。

6. Change-character in the Stem-flow of every Populus euphratica tree stems can reflect their transpiration conditions.
   胡楊的樹榦莖流變化特徵可以反映其蒸騰狀況。

7. Ultimately, they hope to be able to develop a cream that could be applied to the scalp to help the stem cells grow normal hair.
   最終，他們希望能夠研製出一種能幫助幹細胞生長正常頭髮的可以塗在頭皮上的藥膏。

8. Those signals travel up to the brain stem and then the hypothalamus, telling the body to stop eating.
   這些信號依次傳輸到腦幹和丘腦下部，指示身體停止進食。