retain的现在完成时怎么写

vt.保持，留在心中，记住，雇用，付定金保留...

Daily facial exercises help her to retain the skin's elasticity.每天做面部运动帮助她保持皮肤弹性。Disney will retain a 51 percent controlling interest in the venture.迪斯尼将保留该项目51%的控股权。Vegetables should retain some firmness and should...

retain的第三人称单数（三单）为：retains...

We shall retain our rights.我们将保留我们的权利。You must retain your school reports.你必须将学习成绩单保存好。Lungs retain relatively insoluble particulate material.肺脏内留有不溶解的颗粒物质.They may be expected to retain an important place in radiation d...

retain的反义词有：abandon, discard, abandon。vt.retain的反义词（保留,保持）：abandon, discard。retain的反义词（其他释义）：abandon。...

retain的现在进行时为：retaining...

retain的近义词/同义词有：hold, save, preserve, keep, maintain, preserve, maintain, keep, hold, employ, save。vt.retain的近义词（保留;维持）：hold, save, preserve, keep, maintain。retain的近义词（其他释义）：preserve, maintain, keep, hold, employ, save。...

retain的音标：retain的英式发音音标为：[rɪ'teɪn]retain的美式发音音标为：[rɪ'ten]...

retain的近义词有：keep, retain, reserve, preserve, conserve, withhold。下面这些动词均有"保持，保存"的含义：keep：最常用词，指长时间牢固地保持或保存。retain：指继续保持。reserve：正式用词，指为了将来的用途或其他用途而保存、保留。preserve：主要指为防止损害、变质等而保存。conserve：一般指保存自然资源，保全人的精力、力量等。withhold：指扣住不...

retain的一般过去时为：retained...

adj.精通文学的，有学问的，有文化修养的...

色谱载体；铬钼砂；铬目砂；层析吸附剂...

adj.鹰的，似鹰的，（鼻子）钩状的...

strenuous的音标：strenuous的英式发音音标为：['strenjuəs]strenuous的美式发音音标为：['strɛnjuəs]...

“慌乱”的反义词：镇定, 冷静, 镇静。...

periled的音标：...

食管性多涎...

An increasing number of train designs incorporate hollow axles.火车空心轴一体化的数量逐渐递增.The previous three steps incorporate the level switches to determine the durations.以前的三个步骤结合水平开关确定时期.One way of overcoming this problem is to...

Objective To observe the clinical effect and safety of sequential Betahistine Hydrochloride ( BH ) method on dizziness.目的观察 盐酸 倍他司汀序贯治疗眩晕症的临床疗效及安全性.This method has reduced the cost of repeating of BF algorithm , KMP algo...

指南上有对每个饭店的简评。The guide book contains a short write-up of each hotel.圣詹姆斯皇家饭店的厨师们曾经为女王烹制菜肴。Chefs at the St James Court restaurant have cooked for the Queen.最后一次看见他的时候，他正发疯般地大跨步走向饭店的前台。He was last seen striding maniacally ...

乙内酰胺盐...

Alex jumped up so violently that he overturned his glass of sherry.亚历克斯一下子暴跳起来，结果把他那杯雪利酒都打翻了。Sherry is half as strong again as table wine.雪利酒比佐餐酒酒劲强一半。Cook pieces of succulent chicken with ample garlic and a little sherr...

A thread of smoke was wisping out of the funnel.一缕清烟从烟囱里袅袅而上.I like the ship with a yellow funnel.我喜欢那条有黄烟囱的船.The top of the funnel is connected to a tube.这漏斗的顶上接了一根管子....

“巡回”的英语可以翻译为：go the rounds，tour，make a circuit of，circuit，eyre ...

n.汽化器，化油器； 增碳器...