怎样背单词【常用英语前缀(9)circum-/co-】 navigate, 背单词, 常用英语

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　　circum-表示"环绕，周围"

　　circumcise环割（circum+cise切→环切）
　　circumference周长（circum+fer带来→ence→带来一圈→周长）
　　circumnavigate环航世界（circum+navigate航行）
　　circumscribe限制（circum+scribe写→规定范围→限制）
　　circumspect小心谨慎的（circum+stance站→站在周围→环境）
　　circumvent回避（circum+vent走→绕圈走→回避）


　　co-表示"共同"，通常放在元音词根前

　　Cooperation合作(co+operation操作→共同操作→合作)
　　Coagulate凝结(co+agul凝聚+ate→凝聚起来)
　　Coalesce联合；合作(co+al=ally联盟+esce)
　　Coexist共存(co+exist存在)
　　Cohere附着；粘着(co+here粘→粘在一起)
　　Coincide一致，符合，巧合(co+in进+cide掉下→共同掉进来→巧合)
　　Coordinate协调：同等的(co+ordin顺序+ate→顺序一样→同等的引申为平等；协调)

　　来源：怎样背单词：http://skill.qsbdc.com/cigencizhui/29.html
　　英语词汇量测试：http://test.qsbdc.com/?lf
　　5000词组分级在线背诵：http://phrase.qsbdc.com/?lf

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circumcise....
in Arabia,all of the little boy should be  circumcised

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circumference周长
The distance around something; the circumference

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circumnavigate环航世界
Magellan was the first person to circumnavigate the globe

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Do not circumscribe your study only in classes.
circumscribe

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He was very circumspect in his financial affairs

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circumvent回避
The company has opened an office abroad in order to circumvent our tax laws

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Cooperation合作
Our success was attributed not so much to your help as to our cooperation.

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Blood coagulates in air.
   血液遇到空气就凝结。

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Coalesce联合；合作
The views of party leaders coalesced to form a coherent policy

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Coexist共存
Our foreign policy is to coexist with other countries

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Cohere附着；粘着
t can be difficult to get a group of people to cohere

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Coincide一致，符合，巧合
They didn't coincide in opinion

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Coordinate协调：同等的
This is a coordinate clause