pen的复数形式怎么写？

pen的第三人称单数（三单）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...

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的一般过去时为：penned...

There has been a modest upturn in most parts of the industry.该行业的绝大部分领域都出现了一定程度的好转。They do not expect an upturn in the economy until the end of the year...他们预测要到年底经济才能有所好转。Experts have forecast an upturn in the stock mar...

这个头衔将只能传给男性后裔。This title will only pass down through the male line.他们开始把麦克风传给前面的女孩们。They started handing the microphone out round the girls at the front.迪安又拿出一瓶，挨个儿传给大家。Dean produced another bottle and handed it round....

“斜体”的英语可以翻译为：italic (type) ...

mark的现在进行时为：marking...

CAC的音标：...

数字音频广播是21世纪的无线电广播系统。DAB is the radio system of the 21st Century.它的频率响应在整个音频范围内有所下降.Its frequency response has to be flat over the whole audio range.他们欢呼在音频方面所取得的进步.They hailed the advances audio has made....

monocyte的音标：monocyte的英式发音音标为：['mɒnəsaɪt]monocyte的美式发音音标为：['mɑnəsaɪt]...

larch的复数形式为：larches...

inspan的第三人称单数（三单）为：inspans...

n.（古罗马）家庭守护神，（古罗马）家神，家庭守护神( lar的名词复数 )...

practise的音标：practise的英式发音音标为：['præktɪs]practise的美式发音音标为：['præktɪs]...

二溴乙烷...

adj.罕有的，精选的，太讲究的，矫揉造作的...

She suffered from anaemia and even required blood transfusions.她患有贫血症，甚至需要输血。Symptoms of anaemia include weakness, fatigue and iron deficiency.贫血的症状包括虚弱、疲劳和缺铁。I was put on iron tablets for my anaemia.我曾因贫血吃补铁药片....

“上坡”的拼音为：shàng pō...