In there compounds, the cyclopentadiene ring has only four hydrogens.在这些化合物里, 环戊二烯环只有4个氢.The method of cyclopentadiene ( CPD ) from dicyclopentadiene ( DCPD ) with liquid phase thermal decomposition method is studied.研究了...

It takes patience to educate children.教育儿童须要耐心.We must have the patience to continue to work until we will find a peaceful solution...我们一定要耐下心来继续努力，直到找出和平的解决方案为止。We would like to thank them for their patience and underst...

ethnoscience的音标：ethnoscience的英式发音音标为：['eθnəʊsaɪəns]ethnoscience的美式发音音标为：['eθnoʊˌsaɪəns]...

He was quiet, conscientious, a bit of a plodder.他做事闷声不响，小心谨慎，有点死气沉沉的。She is very conscientious and never skimps her work.她办事认真,从不敷衍了事.We are generally very conscientious about our work...我们普遍对工作都非常认真。She has received sev...

befriends的音标：...

To grant them leniency is to regard them as ordinary people.对他们的宽容,只有把他们当作普通人来面对.Her leniency had, in a way, inflamed his regard.在一定程度上, 她的宽容态度也煽起了他的爱慕之情.Police offer leniency to criminals in return for information.警方给罪犯...

adv.方便地，得当地，便利地...

Today I went to see my penfriend in Hongye Hotel.今天去红叶宾馆见我的笔友.I have not received any message from my penfriend for almost half an year.我已经大约半年没接到我笔友的消息了....

I carried out my duties conscientiously.我一丝不苟地履行我的职责。Officers and men perform their assigned duties conscientiously.将士用命.He kept silent,eating just as conscientiously but as though everything tasted alike.他一声不吭,闷头吃着,仿佛桌上...

The overall ambience of the room is cosy.房间整体的感觉是温暖舒适。The rejuvenating ambience of autumn is immeasurably more ancient than even the calendar.秋天那让人恢复青春活力的气氛远比历法还要古老.The invaders have destroyed the, oh, I don't know ...

The large technology market is orientated to western countryside, farmers and agribusiness.科技大市场面向西部农村 、 农民和农业企业.He orientated himself by finding a familiar landscape.他寻见一处熟悉的景色,从而确定自己所处的方位.Radio 1's playlist is dom...

adj.吸收性的n.吸收剂...

So, we carried out with cyclopentadienyl molybdenum tungsten disulfide - based Synthesis and Characterization of.为此, 我们开展了对含环戊二烯基二硫型的钼钨配合物的合成及性质研究.The progresses in bridged or substituted cyclopentadienyl ( and indenyl )...

disorient的音标：disorient的英式发音音标为：[dɪs'ɔ:rɪent]disorient的美式发音音标为：[dɪs'ɔriˌɛnt, -'or-]...

This is a lyrical work written with the authority and assuredness of an experienced writer.这部抒情作品由一位有经验的作家以老练、自信的笔触写成。He was an experienced parachutist who had done over 150 jumps.他是个经验丰富的跳伞者，已经跳过150多次伞了。That young man i...

She's proficient in several languages.她精通好几种语言。a technically proficient performance of the piece精湛的乐曲演奏She was very proficient in music.她非常精通音乐.Mr. Barret is not proficient in diagnosis, let alone investigation.巴瑞特先...

n.应急有效的，权宜之计的( expedient的名词复数 )...

n.愚蠢...

He is not as friendless as he appeared to be.他并不像看上去的那样孤独无助。My friend fails to mention the long and friendless winter evenings which are interrupted only by an occasional visit to the local cinema —— virtually the only f...

scientific的反义词有：unscientific, unscientific。adj.scientific的反义词（科学的）：unscientific。scientific的反义词（其他释义）：unscientific。...

science museum的音标：science museum的英式发音音标为：['saiəns mju:'ziəm]science museum的美式发音音标为：['saɪəns mju'ziəm]...

v.使（某人）迷失方向( disorient的现在分词 )...

We read the gossip written about them with prurient interest.我们翻看他们的八卦时带着不洁的想法。...

antiabortifacient的音标：antiabortifacient的英式发音音标为：[ænti:əbɔ:tɪ'fəʃnt]antiabortifacient的美式发音音标为：[æntiəbɔtɪ'fəʃnt]...

n.熟练，精通，娴熟...

It grieves me to hear how disobedient you've been.听说你很不听话,使我感到非常难过.That disobedient boy is a pest.那不听话的男孩令人讨厌.Her tone was that of a parent to a disobedient child.她的语气就像是一个家长在训自己不听话的孩子。The disobedient boy was ordere...

The disquietude of his air, the somewhat apprehensive impatience of his manner, surprised me.他神情不安, 急躁的举止中有点担忧, 这使我吃了一惊.He kicked the chair in a spasm of impatience.他突然变得不耐烦，一脚踢向椅子。He expressed impatience at the slow rat...

n.间脑，中脑...

inefficiently的音标：inefficiently的英式发音音标为：[ˌɪnɪ'fɪʃntlɪ]inefficiently的美式发音音标为：[ˌɪnɪ'fɪʃntlɪ]...

环戊二烯...