pen的一般过去时怎么写？

pen的复数形式为：pens...

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

pen的现在完成时为：penned...

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的现在进行时为：penning...

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的第三人称单数（三单）为：pens...

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...

“汞”的英语可以翻译为：[化] mercury (80号元素， 符号 Hg)，Hg，hydrargyrum，quicksilver ...

“奇迹”的近义词/同义词：古迹, 事迹, 遗迹, 行状, 事业, 稀奇, 奇妙。...

monitors的音标：...

sardine的现在进行时为：sardining...

sweats的音标：sweats的英式发音音标为：[swets]sweats的美式发音音标为：[swets]...

这首诗是对她许多著作的核心主题的概括。The poem encapsulates many of the central themes of her writing.数学材料是夹在天文著作的篇章里讲述的.The mathematical material is presented in chapters of work on astronomy.他曾尝试注释荷马著作的一段文字.He had tried to construe a pas...

slap down的音标：slap down的英式发音音标为：[slæp daun]slap down的美式发音音标为：[slæp daʊn]...

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.In foil and saber, only the attacking fencer can score a point.在花剑和佩剑比赛中, 只有进攻方才能得分.Like a gryphon puffing flames, crashed through Night&#...

“体辐”的拼音为：tǐ fú...

wall的现在进行时为：walling...

表皮病...

Costa Rica becomes a signatory to the Buenos Aires copyright treaty.1916年,哥斯达黎加成为布宜诺斯艾利斯版权条约的签字国之一.He fled to Costa Rica to avoid military service.他逃到了哥斯达黎加以逃避服兵役。...banana plantations in Costa Rica.哥斯达黎加的香蕉种植园Here, a fe...

Jiessie的音标：...

n.（容量为104盎司的）大香槟酒杯，大酒杯，大酒瓶...

游园会那天很可能会下雨.It will doubtless rain on the day of the garden party.不要指望你举行游园会时会是好天气.Don't reckon upon the weather being fine for your garden party.我们原想在本周末举行游园会, 但忽略了天气的因素!We had hoped to hold the garden party this w...