3906.demand(动)请求、要求
同义词request
The UN has demanded that all troops be with drawn.
联合国已要求撤出所有部队。

3907.demanding(形)苛责的；使人吃力的
The work is physically demanding.
这工作需要有很好的体力。

3908.demo(名)示范;游行示威
A digital wrapper around a demo version of a product could warm the user that there are only
a few more uses of the software left before it shuts off．
包在一个产品演示版外的数码包装器可以警告用户，软件再用几次就要关闭了。

3909.dental(形)牙齿的
I had undergone a major dental operation.
我经历了一次牙科大手术。

3910.deny(动)否认
后接动名词
The boy denied having stolen the bicycle.
男孩否认他偷了自行车。

3911.depend(动)依赖
短语depend on
I don't know if we can help. It all depends．
我不知道我们能不能帮上忙，一切都得看情况而定。

3912.dependable(形)可靠的
Who's the most dependable news agent?
谁是最可靠的报刊代理人?

3913.dependent(形)依赖的、依赖性强的
l used to be dependent on my parents. Now I'm independent of them.
我从前一切都依赖父母，现在我独立了。

3914.depress(动)使沮丧
同义词deject
Wet weather always depresses me．
阴雨天总使我心情抑郁。

3915.depression(名)沮丧；不景气
不可数
She suffered from severe depression after losing her job.
他失业后患了严重的抑郁症。

3916.deserve(动)应得
后接不定词
They deserve to be sent to prison.
他们应该被送进监狱。

3917.desolate(形)孤寂的(动)使孤寂
(形): The thought that her husband did not want tha baby made her feel utterly desolate.
她一想到丈夫不要这孩子便感到极度悲凄。
(动): She had been desolated by the death of her friend.
朋友的去世使她感到十分孤寂。

3918.dessert(名)餐后甜点
What's for dessert?
餐后甜点吃什么？

3919.destination(名)目的地
Our luggage was checked all the way through to our final destination.
我们的行李一直被托运到最终目的地。

3920.destine(动)命中注定
She feels she is destined to be unhappy for the rest of her life.
他认为她命中注定余生不会再有快乐。

3921.destiny(名)命运
We can find no way to complain of the tricks played on human bening by destiny.
我们无法抱怨命运之神对人类的戏弄。

3922.detailed(形)详细的
Can you tell me the detailed address?
可以告诉我详细地址吗？

3923.detect(动)查出、侦测到
He detected a note of sarcasm in her words.
他发觉她的话中有讽刺的口气。

3924.detective(形)侦探的
I like detective story.
玻喜欢侦探小说。

3925.detector(名)探测器
Astrophysicists working with ground-based detectors at the South Pole and balloonborne instruments are closing in on such structures．
天体物理学家依靠南极陆基探测器以及地球载仪器正越来越近地观测这些云系。

3926.determine(动)决定、坚决
An inquiry was set up to determine the cause of the accident.
为确定事故发生的原因已展开调查。

3927.devil(名)魔鬼
They believed she was possessed by devils.
他们认为她是被魔鬼附身了。

3928.devoted(形)专心致志的
后接不定式to
They are devoted to their children.
他们深爱着自己的孩子。

3929.diamond(名)钻石
The ljghts shone like diamonds.
灯光像钻石一样闪闪发亮。

3930.differ(动)不同于……
后接介词from
Ideas on childcare may differ oonsiderably between the parents.
在抚育儿童方面父母的观点可能迥然不同。

3931.differential(名)差别
Non EEC countries pay a higher differential tariff.
欧洲经济共同体以外的国家须付高于成员国的差别关税。

3932.differentiate(动)区别、区分
同义词distinguish
This company does not differentiate between men and women.
这家公司对男女职员一视同仁。

3933.difficulty(名)困难
We've run into difficulties with the new project.
我们在这项新工程中遇到了难题。

3934.digestion(名)消化作用
She has a week digestion.
她的消化力很差。

3935.dimple(名)酒窝；笑靥
Sha had a dimple which appeared when she smiled.
她一笑就会露出酒窝。

3936.dinosaur(名)恐龙
There is evidence from dinosaur track ways, mass accumulations of certain dinosaur fossils, and nesting sitas that dinosaurs were social animals.
由恐龙的足迹、大量的化石堆积和群居的巢穴这些证据，都证明恐龙是一种群居动物。

3937.director(名)导演；主管
He's on the board of directors.
他是董事会成员。