词典释义：
(often in names)a group of people organized for a joint purpose
［常用于名称］联盟，协会，社团
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the National Association of Probation Officers. 全国缓刑犯监督官协会。
【生态】 （植物）群丛。
a connection or cooperative link between people or organizations
（人或机构之间的）联系，联合
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he developed a close association with the university 他与那所大学建立了密切的联系
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[mass noun]
the programme was promoted in association with the Department of Music. 那节目是与音乐系共同推出的。
[mass noun]the action or state of becoming a member of an organization with subordinate status
加入，加盟
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[as modifier]
an association agreement between Bulgaria and the EC .保加利亚加入欧洲共同体的协议。
【化】 （分子间通过氢键或其他无全键结构反应的）缔合，联合。
(一 般作
联想
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the word bureaucracy has unpleasant associations .官僚主义这个词会引起不愉悦的联想。
[mass noun]the action of making such a connection
联系；联想
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the association of alchemy with ‘hieroglyphics' and ‘cabala.
’ 从炼丹术到“象形文字”和“魔法”的联想。
[mass noun]the fact of occurring with something else; co-occurrence
（与其他事物的）同时出现，共生
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cases of cancer found in association with colitis .与结肠炎并发的癌症病例。
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the National Basketball Association （NBA）美国职业篮球协会
真题例句：
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(the) Chinese Basketball Association （CBA）中国篮球协会
真题例句：
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(the) China Consumers Association 中国消费者协会
真题例句：
"mid 16th cent． （in the sense ‘uniting in a common purpose’）： from medieval Latin
