concentrate

集中，浓缩

【例】He concentrated his mind to consider about how to deal with the company’s redundancy.

他集中精力来考虑如何应对公司裁员的问题。

concept

观念，概念

【例】Consumers began to accept the self-service concept of fast-food popularised by McDonald’s.

消费者开始接受由麦当劳普及开来的快餐自助服务理念。

concise

简明的，简洁的

【例】The manager’s address is both concise and informative.

经理的演讲既简洁，信息量又大。

conclude

推断；决定，作结论；结束；达成，缔结（协定）

【例】APEC (Asia-Pacific Economic Cooperation) concluded its annual summit meeting today. 亚太经济合作组织于今天结束了其年度峰会。

condition

状况；条件；环境，形势；条款；使适应；使取决于；约束

【例】It’s easy to make a wrong turn here even under ideal weather conditions.

即使天气条件非常理想，也很容易在这里拐错弯。