and

conj. 和，與，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多錢購買昂貴的首飾和衣服。

its

pron. (it的所有格形式)它的，厥；

例句
The government is to accelerate its privatisation programme.
政府將加快其私有化計劃的進程。

derivatives

n. 衍生性金融商品，派生物，引出物( derivative的名詞復數 )，導數；

例句
Sixteen flavanone - 7 - O - acetic acids, acetates, acetyl amino acidsand dipeptides derivatives were synthesized.
合成16個黃烷酮 -7-O- 乙酸、乙酸酯、乙酰氨基酸和二肽衍生物.

is

vt.& vi. 是（be的三單形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香檳是一種名貴的備受推崇的葡萄酒。

one

num. （數字）一，一個，（基數）一，第一；n. 一個人，一點鐘，一體，獨一；pron. 一個人，任何人，本人，人家，東西；adj. 某一個的，一體的，一方的；

例句
No one ever questioned her capability.
從來沒有人質疑她的能力。

of

prep. 關于，屬于…的，由…制成；aux. 助動詞 [非標準用語、方言] =have [主用于虛擬語氣]；

例句
He did have a real knowledge of the country...
他對該國的確知之甚多。

the

art. 指已提到的人（物），指說話人與聽者已知的人（物），用于獨一無二的事物前，與形容詞最高級和序數詞連用；

例句
He did have a real knowledge of the country...
他對該國的確知之甚多。

most

adv. 最，最多（大），much的最高級，非常，很，幾乎；adj. many的最高級，最多的，最大的，大概的，大多數的，大部分的；n. 最大限度，大部分，大多數人；

例句
As long as most people are happy to have the monarchy, the abolitionist position is an arrogant fantasy.
只要大多數人還樂意保留君主制，廢除它的主張就是癡人說夢。

promising

adj. 有前途的，有希望的，光明，有為；

例句
Mr Beazer tried to calm the protests by promising to keep the company's base in Pittsburgh.
比澤先生承諾仍將公司總部設在匹茲堡,以求平息抗議。

electroluminescent

adj. 場致發光的，電致發光的；

例句
Thin film electroluminescent display is one of the main flat panel displays.
薄膜電致發光顯示是平板顯示的主要技術之一.

polymers

n. <化>聚合物（體）( polymer的名詞復數 )；

例句
Then we got involved with trying to find polymers that attenuate radiation.
接著我們致力于找出能夠減弱輻射的聚合物.

...the spiralling vortex airflow that slows the plane.
使飛機減速的螺旋形氣流渦旋

You just go on ahead. I'll come by later...
你只管先往前走。我隨后就來。

He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打兒子的,是恨惡他;疼愛兒子的, 趁早管教.

For further information, please contact 414 3925, extension 2253.
詳情請致電414 3925,轉分機2253。

He sat there while I made the case for his dismissal...
他坐在那兒，聽我陳述解雇他的理由。

Baroness Thatcher's claims seem credible to many.
撒切爾女男爵的主張在很多人看來是可信的。

Nothing to be got without pains but poverty.
一份耕耘，一份收獲。

This decree obliges unions to delay strikes.
該法令迫使工會推遲罷工。

The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索權當有支付義務的第一方不能支付時，可以向商業票據的背書人要求支付的權力。

Now we get along just well.
現在我們相處得很好。

Even if this album doesn't sell and the critics don't like it, we wouldn't ever change...
即使這張專輯得不到市場和評論家的青睞，我們也不會作出任何改變。

Eddie was a short squat fellow in his forties with thinning hair.
埃迪四十多歲，矮矮胖胖的，頭發日漸稀疏。

The speaker was regrettably indisposed.
很遺憾,演講人身體不適。

She feared losing her inheritance to her stepmother.
她擔心她繼承的遺產會被繼母奪走。

a preacher famous for her inspiring sermons
以發人深省的講道出名的傳道者

Control yourself , sir. These outbursts of petulance are not seemly.
您哪, 就克制點吧. 這么使性子可不像話.

This school of thought argues that depression is best treated by drugs.
這一學派主張抑郁癥最好用藥物治療。

The child clasped the doll tightly.
小孩緊抱著洋娃娃。

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聚芴衍生物是最有發展潛力的電致發光材料之一.用英語怎么說？

聚芴衍生物是最有發展潛力的電致發光材料之一.

Polyfluorene and its derivatives is one of the most promising electroluminescent polymers.

and

its

derivatives

is

one

of

the

most

promising

electroluminescent

polymers