6897.concentration(名)专心
This type of work requires total concentration.
做这种工作需要全神贯注。

6898.concept(名)概念
It is difflcult to grasp the concept of etemity.
永恒这个概念是很难懂的。

6899.concern(动)担心
短语concern for
You needn't concern yourself for the hotel booking.The travel agent will take care of it.
你不必为预定酒店房间的事操心，旅行社会帮你安排的。

6900.concerning(介)关于
She refused to answer questions concerning her private life．
她拒绝回答有关她私生活的问题。

6901.concert(名)音乐会
The band is on tour doing concerts all over the country.
该乐团正在全国各地巡回举办音乐会。

6902.cancession(名)止步
短语make concession
Employers have been forced to make cancessions to the union．
雇主被迫对工会作出让步。

6903.concise(形)简洁的
He gave a clear and concise summary of what had happened.
他清楚扼要地叙述了事情的经过。

6904.conciusion(名)结论
After trying to phone Bob for days, I came to the conclusion that he was on holiday.
我一连几天打电话结鲍勃都打不通，后来才是得到他去度假的结论。

6905.congrete(形)具体的
Can you give me a congrete example of what you mean?
能否举个具体例子说明你的意思？

6906.condense(动)使凝结
Steam condense into water when it touches a cold surface.
水蒸气接触寒冷的表面即凝结成水珠。

6907.condom(名)保险套
There are some condoms in the bag．
袋子里有些保险套。

6908.confederation(名)联盟
Unquestionably，the idea of a universal confederation and a perpetual peace is commended both by common sense and religion.
毫无疑问地，世界联盟和持久和平的观念是受到常识和宗教拥护的。

6909.confer(动)商谈、协商
The President is conferring with his advisers.
总统正在征询顾问的意见。

6910.conference(名)会议
The conference was terminated yesterday．
昨天的会议结束了。

6911.confession(名)供认
The police persuaded the man to make a full confession．
警方说服那名男子全盘招供.

6912.confide(动)吐露
She did not confide her love to anyone.
她没有把她的恋情告诉别人。

6913.confidence(名)信心
The public is losing confidence in the present government．
民众对目前的政府渐渐失去信心。

6914.congregate(动)聚集
The crowds congregate in the town square to hear the President.
人群聚集在城内广场上听总统演讲。

6915.comgressional(形)国会的
The comgressional opponents zeroed in on the bill.
国会中的反对派把矛头集中在那项议案。

6916.congressman(名)议员
According to the newspaper,the congressman is murdered.
根据报纸所述，议员是被谋杀的。

6917.conjecture(名)猜测
John didn't know the fact; what he said was pure conjecture．
约翰并不知道实情，他说的纯属猜测。

6918.conjunction(名)结合
The cause of the accident is the conjunction of technical and managerial factors.
事故的原因是技术因素和管理因素共同造成的。

6919.conquest(名)征服
They succeeded in the conquest of the city.
他们成功地征服了这座城市。

6920.conscientious(形)尽责的
He's aconscientious worker．
他是个非常尽忠职守的员工。

6921.conscious(形)神智清醒的
The injured driver was still conrscious when the ambulance arrived．
救护车到的时候，受伤的司机神智依然清醒。

6922.conscious(副)有意地
反义词unconsciously
Balzac conscious set himself the task of writing "the natural history" of this socioty.
巴尔扎克有意识地为自己规定了为这个社会写“自然史”的任务。

6923.consiousness(名)知觉
As he fell, he hit his head and lost consiousness.
他跌倒时撞到头部，失去了知觉。

6924.consecutive(形)连续的
同义词continuous
This is the team's third consecutive win.
这是该队连续3次获胜。

6925.consensus(名)一致
There is no consensus among experts about the causes of global warming．
关于全球气候变暖的起因，专家们意见不一。

6926.consequent(形)因……的结果而起的、随之发生的
The lack of rain and consequent poor harvests has led to food shortages.
由于缺乏雨水，以及随之而来的歉收，导致食物短缺。

6927.consequently(副)因此
同义词therefore
She didn't work hard enough, and consequently failed the exam.
她不够努力，结果考试不及格。

6928.conservation(名)保护
同义词protection
Conservation groups are protesting against the plan to build a road through the forest.
自然保护组织反对兴建道路穿越森林的计划。