sheath的一般过去时怎么拼写

sheath的现在进行时为：sheathing...

sheath的现在完成时为：sheathed...

the sheath around an electric cable电线护皮He drew his sword from its sheath.他拔剑出鞘.This suit of clothing is more inexpensive than that sheath.这套衣服比那套便宜....

sheath的第三人称单数（三单）为：sheaths...

sheath的音标：sheath的英式发音音标为：[ʃi:θ]sheath的美式发音音标为：[ʃiθ]...

sheath的复数形式为：sheaths...

n.护套，鞘，叶鞘，紧身装v.包，盖...

Coleorhiza ( pl . coleorhizae ) The protective sheath surrounding the radicle in grasses.胚根鞘:保护幼根的鞘状结构.Conclusion Saber sheath trachea is a sign of rather severe COPD.结论剑鞘气管是较重的copd的标志.Coleoptile A sheath like structure ...

“度过”的英语可以翻译为：spend，pass (of time)，get through，live through，tide over ...

“隆线”的拼音为：lóng xiàn...

n.燧石化...

“密闭度”的英语可以翻译为：leak tightness，leakproofness ...

n.拱门，拱道...

Maximus: Tree weeks from now, I will be harvesting my crops.麦希穆斯: 三个星期后, 我将会在田里收割庄稼.Maximus: What would you have me do, Caesar?马克西姆斯: 你要我做什么, 恺撒?Maximus: My house is in the hills above Tiupllo, a very simple place.马克西姆斯:...

“受精”的英语可以翻译为：e fertilized，fertilization，insemination，siphonogamy，fecundation ...

bander的音标：bander的英式发音音标为：[bændə]bander的美式发音音标为：[bændə]...

foursome的音标：foursome的英式发音音标为：['fɔ:səm]foursome的美式发音音标为：['fɔrsəm]...

railways的音标：railways的英式发音音标为：['reɪlweɪz]railways的美式发音音标为：['reɪlweɪz]...

expostulate的现在完成时为：expostulated...

Nora picked up the boy, and gave him a biscuit. "There you are, Lennie, you take the nice biscuit."诺拉抱起那个男孩，给他一块饼干，说：“伦尼，给，拿着这块好吃的饼干。”Suddenly Lennie's eyes centered and grew quiet, and mad.伦尼的两眼忽然发直,人静下来却气得不可开交.Len...

研究得到了MARMA模型的平稳性条件和自相关函数.The stationary conditions and autocorrelation function of the MARMA process are investigated.针对平稳自相关过程,提出了一种过程能力分析方法.A method of process capability analysis for stable autocorrelation is proposed...

unfrequented的音标：unfrequented的英式发音音标为：['ʌnfri'kwentid]unfrequented的美式发音音标为：[ʌn'frikwəntɪd, ˌʌnfri'kwɛntɪd]...

This was intended to exclude the direct rays of the sun...其目的是阻挡直射的太阳光。X-rays have confirmed that he has not broken any bones...X光片证实他没有骨折。Gravity incurvates the rays.重力能使光线弯曲.A convex lens is used to concentrate rays of...