31.claim for sth要求，如：

Claim for delayed delivery
延误交货索赔
Claim for inferior quality
由于质量低劣而索赔

32.collision with sb/sth碰撞，冲突  如：　

His car had a collision with a truck.
他的车子与货车相撞。

33. comment on/about 对……的评论  如：　

What’s your comment on our operas?
你对京剧的评价怎样？
Many customers have high comment on it.
许多顾客对此商品的评价很高。

34.connection between 关系，连接  如：　　

The connection between the two events is remote.
这两件事之间没有什么联系。

35. complaint of/about 报怨，控告  如：　　

I have a complaint of the chest.
我胸部不适。
accept complaint about damage
接受货损抱怨
　　
36. compromise between/on 折中，妥协  如：　　

Progress has been made towards a political compromise between the two nations.
两国之间的政治和解已经取得进展。

37.concentration on sth 专心，集中精力  如：　

Too much concentration on one aspect of a problem is dangerous.
过度专注于问题的一面是危险的。
concentration of emotional energy on an object or idea
精神集中于某物或某种想法上

38. concentration of sth 集中，聚集  如：

Having a high concentration of acid
含高浓度酸
They strongly recommended concentration of offer.
他们极力建议集中报盘。

39. concern about/for/over 担心  如：

There was also concern about the adaptation of laws exercise.
人们也非常关心关于法律适应化的工作。

40.confidence in 对……的信任，相信 如：

I have complete confidence in them.
我对他们完全有信心。
He inspired confidence in us.
他使我们获得了信心。
41. consent to sth 同意  如：

Her parents refused their consent to the marriage.
她的父母不答应这门婚事。
His consent to your proposal speaks volumes for his good will.
他赞成你的提议充分证明他的友善。

42. contact with sb/sth 接触，联系  如：　

No, I have no contact with her.
没有，我和她没有一点儿联系。
Always maintain eye contact with the interviewer.
和雇主要一直保持目光接触。

43. contest for sth 争夺，竞争  如：　

a contest for the top job in the union
为争取协会的最高职位而进行的角逐
He come second in the contest for deputy leader.
在角逐副领导人时，他居第二位。

44. contradiction between 矛盾，不一致  如：　

There seems to be a contradiction between her word and action.
她的言行似乎不一致。
There is no fundamental contradiction between socialism and a market economy.
社会主义和市场经济之间不存在根本矛盾。

45. contribution to 贡献，捐献，促成  如：　

Einstein make a great contribution to science.
爱因斯坦对科学作出了伟大的贡献。
She makes a big contribution to modern sculpture.
她对现代雕塑有很大贡献。

46. conversation with sb 对话  如：　

Did you have a conversation with him?
你和他谈过话了吗？
I struck up a conversation with this old woman in the shop.
我在商店里与这位老妇人攀谈起来。

47. danger to sb/sth 危险  如：　

Smoking is a danger to health.
吸烟对健康有害。
He is a danger to society.
他对社会是个威胁。

48. credit for sth 荣誉，赞扬  如：

He got all the credit for the discovery.
这一发现全都归功于他了。

49. damage to sth 损坏  如：

bird and mammal damage to forest
森林鸟兽害

50.contrast to/with sth 对比，对照  如：

In contrast with their system, ours seems very old-fashioned.
我们的制度与他们的相比，显得过于守旧了。
51. decision on/against 做/不做……的决定  如：

A decision on this matter is pending.
此事即将作出决定。
The committee reversed its decision on import quota.
委员会取消了对进口货物的配额的决定。

52. decrease in sth ……的减少  如：　

There has been a steady decrease in population in this city.
这个城市的人口在持续下降。

53. defence against 防御，保卫  如：　

Trees are a defence against the wind.
树是一种防风物。
The country put up a strong defence against the enemy 's invasion
为了抵御敌人的侵略，这个国家布置了坚固的防御工事。

54. delegate to 参加……的代表  如：　

He was elected as a delegate to the annual conference.
他被选为年会代表。

55. demand for 对……的需求  如：　

Demand for hospital services remained high.
居民对医院服务的需求仍然殷切。
A fall in demand for oil tankers has put/placed thousands of jobs in the shipbuilding industry in jeopardy.
油轮需求量下降使造船业成千上万的工作职位受到威胁。

56. departure from 离开  如：　

Ordered curry as a departure from his usual bland diet.
他没有点通常吃的淡而无味的食品，而要了咖哩食品。
The new system is a departure from our usual methods.
这套新办法不同于我们惯用的方法。

57. desire for sth 渴望   如：　

It is obvious that they have no desire for peace.
很显然，他们没有和平的愿望。
They had little desire for wealth/to get rich.
他们对财富（致富）没有什么欲望。

58. differences between 不同，差异  如：

Differences between employers and workers go deep.
雇主和工人间的分歧很大。
The differences between the pictures are very slight.
这两幅画差别很小。

59. dispute about 争论，辩论  如：

It is ridiculous to dispute about such a thing.
为这样的事情而争论简直荒谬可笑。
There will be a dispute about the rightful succession to her estate.
对于她产业的合法继承权将有一场争论。

60. distinction between 区别  如：

He drew a quite artificial distinction between men and women readers.
他把男读者和女读者硬是人为地区分开来。
We should make a distinction between right and wrong.
我们应该分清是非。