6829.coal(名)煤
Coal gas is produced by the gasification of coal．
煤气是由煤的气化作用得到的。

6830.coalition(名)联盟
Coalition military operations are progressing and will succeed.
联盟的军事行动正不断取得进展，必将获得成功。

6631.coarse(形)粗俗的
His coarse remarks about women offended her．
他对女人粗俗的评语使她感到不舒服。

6632.coastline(名)海岸线
As evening came，the coastline faded into darkness．
夜晚降临时，海岸线在黑暗中逐渐消失了。

6633.coating(名)外层
It needs another coating of paint.
它需要再上一层漆。

6634.coax(动)哄诱
The child wasn't hungry, but his mother coaxed him into eating a little．
那孩子不饿，可是他妈妈哄他吃点东西。

6635.cocaine(名)古柯碱
Cocaine is a drug.
古柯碱是一种麻醉药品。

6636.cockpit(名)驾驶舱
He climbed into the cockpit and started the engine.
他爬进座舱，把发动机开动起来。

6637.cockroach(名)蟑螂
简称roach
The inspector find a cockroach in the kitchen．
检查员在厨房发现一只蟑螂。

6638.cocktail(名)鸡尾酒
How about our special cocktail?
尝尝我们特制的鸡尾酒怎么样？

6639.coexist(动)共存
The war started because the two countries couldn't coexist peacefully.
两国因为无法和平共存，所以爆发了战争。

6840.conffin(名)棺材
They draped the flag over the soldiar's conffin.
他们把国旗盖在那个战士的棺木上。

6841.coincide(动)同时发生
The Queen's visit is timed to coincide with the country's centenary celebratians.
女王到访日期安排在该国一百周年国庆期间。

6842.coincidence(名)巧合
We haven't planned to meet; it was just coincidence.
我们并没有事先安排，这次见面纯属巧合。

6843.collision(名)相撞
It was a head-on collision and the driver was killed instantly.
两车迎头相撞，司机当场死亡。

6844.colonel(名)陆军上校
He gained the rank of colonel.
他获得了上校的职位。

6845.colonial(形)殖民的
Spain used to be a major colonial power.
西班牙以往是个殖民强国。

6846.colonist(名)开拓者
Many of the old puritan colonist retain their factious temperament in the new world.
许多清教徒开拓者在新大陆仍保持他们好争论的脾气。

6847.colony(名)殖民地
They planted a colony there.
他们在那里建立了殖民地。

6848.color-blind(形)色盲的
Somepeople can't tell red from green,as they are color-blind．
有些人分别不出红色和绿色，因为他们患有色盲症。

6849.columnist(名)专栏作家
The newspaper has a very popular columnist comment on current affairs．
这家报纸有一位深受欢迎的专栏作家评论时事。

6850.combat(动)战斗
The nation will to combat all invaders.
这个民族将和所有的入侵者战斗。

6851.combination(名)结合
The team managar still hasn't found the right combination of players.
领队仍未找出合适的选手搭配。

6852.combine(动)使结合
The two organizations combined to form one company．
两个机构合并为一家新公司。

6853.comical(形)滑稽的
He looked highly comical wearing that tiny hat.
他戴着那顶小帽子，看上去真滑稽。

6854.commander(名)指挥官
Decision io necessary for commander．
果断是一个指挥官必不可少的。

6855.commemorate(动)纪念
This symposium is being held to commemorate this grand occasion．
这次会议是为纪念这个重大的日子而召开的。

6856.commence(动)开始
同义词begin
The performances will commence at 6:30 p.m.
演出将于晚上6点30分开始。

6857.commend(动)称赞
同义词praise
Dean was commend for his excellent work.
迪安工作表现出色，受到嘉许。

6858.commentary(名)评论
They kept a running commentary on the speech.
他们对那次讲话作了连续的评论。

6859.commentator(名)实况播音员
Our commentator will now set the scene in the stadium.
实况播音员现在就要在体育场向我们做报导。

6860.commercial(形)商业的(名)商业广告
(形):Open the area to commercial development.
开放这个区域作为商业发展之用。
(名):The TV show was cut by many commercial.
这个电视节目被很多商业广告中断。

6861.commission(名)佣金
Agents get 10% commission on everything they sell．
代理商收取相当于货价一成的佣金。

6862.commissioner(名)特派员
He is the high commissioner of this society.
他是这个团体的特派专员。