pen的现在完成时怎么拼写？

n.笔，笔尖，笔法，文笔，作家，围栏vt.写，把…关入栏中，关押，囚禁...

Use different colours of felt pen on your sketch to avoid confusion.用不同颜色的毡头笔画草图，以免搞混。Draw the basic outlines in black felt-tip pen (see fig. 4).用黑色毡头笔画出基本轮廓（见图4）。He sat behind a desk laboriously writing with an Army iss...

pen的复数形式为：pens...

pen的现在进行时为：penning...

Jack filched a pen from his friend's pocket.杰克从朋友的口袋里偷走了一支钢笔.He has used a mixture of mosaic, collage and felt-tip pen.他混合使用了马赛克、拼贴画和毡头笔。...a 14-carat gold fountain pen.14开金钢笔Could you hold the line and I'll ju...

pen的音标：pen的英式发音音标为：[pen]pen的美式发音音标为：[pɛn]...

pen的一般过去时为：penned...

pen的第三人称单数（三单）为：pens...

warranty的复数形式为：warranties...

soys的音标：...

engorge的现在完成时为：engorged...

Looking back, she feels she should never have hung up her backpack.回首过去，她觉得自己真不该放下背包不再徒步旅行。He squirmed out of the straps of his backpack.他扭动身体，挣开背包的肩带。This suitcase, and a backpack.这个手提箱和背包....

mammy的音标：mammy的英式发音音标为：['mæmi]mammy的美式发音音标为：['mæmi]...

When fed to animals that had partial hepatectomies, their livers grew back more quickly.将其给做完部分肝切除术的动物吃, 可以发现它们肝功能恢复速度较快.Regular exercise reduces fat in livers of diabetics, according to a study.根据一项研究显示,规律的运动能够减低糖尿病患者的脂...

aback的反义词有：forward, ahead, ahead, forward。adv.aback的反义词（向后）：forward, ahead。aback的反义词（其他释义）：ahead, forward。...

Bragg weaves together the histories of his main characters.布拉格把他主要人物的身世都串在一起。She weaves imaginative elements into her poems.她在诗中编织着奇思妙想。Jenny weaves baskets from willow she grows herself.珍妮用她自己种的柳树的枝条编篮子。...

adjoins的音标：...

adj.沉默寡言的，不易亲密的，不善交际的...

parent的反义词有：child, child。n.parent的反义词（父亲;母亲）：child。parent的反义词（其他释义）：child。...

“大圆”的拼音为：dà yuán...

druggists的音标：...

提出双波长双脉冲激光产生三次谐波的方法.The method for third harmonic generation of double wavelength and double pulse laser is proposed.介绍了双脉冲氰化光亮镀银的工艺流程和工艺配方.The process flow and bath formula of double - pulse DMS cyanide bright silver pl...

“继母”的英语可以翻译为：stepmother，stepdame，[电影]The Stepmothe...