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單詞乎

sheath

音標(biāo)[?i:θ]
sheath是什么意思、sheath怎么讀

sheath漢語翻譯

n. 鞘, 葉鞘, 翅鞘
【化】 護(hù)套
【醫(yī)】 鞘

sheath詞型變化

名詞復(fù)數(shù):sheaths 動(dòng)詞過去式:sheathed 過去分詞:sheathed 現(xiàn)在分詞:sheathing 第三人稱單數(shù):sheaths 

sheath英語解釋

名詞 sheath:

  1. a protective covering for a knife or sword
  2. an enveloping structure or covering enclosing an animal or plant organ or part
    同義詞：case
  3. a dress suitable for formal occasions
    同義詞：cocktail dress

sheath例句

  1. The sheath of connective tissue enclosing a bundle of nerve fibers.
    經(jīng)來膜包裹住神經(jīng)纖維的膜狀結(jié)締組織
  2. A growing feather still enclosed in its horny sheath, especially one just emerging through the skin.
    (鳥類的)新生毛一種裹在角鞘中的新生毛，特別是剛剛冒出皮膚外的羽毛
  3. The innermost layer of the cortex that forms a sheath around the vascular tissue of roots and some stems.
    內(nèi)皮層皮層的最內(nèi)層，在根、莖的導(dǎo)管組織周圍形成一道葉鞘(莖衣)
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