cooperation
n. 合作；协作；合作社；协同作用 名词：cooperationistcooperation双解释义 cooperation n.(名词) [U]合作 the act of working together for a shared purpose Noun joint operation or action;"their cooperation with us was essential...
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n. 合作；协作；合作社；协同作用 名词：cooperationistcooperation双解释义 cooperation n.(名词) [U]合作 the act of working together for a shared purpose Noun joint operation or action;"their cooperation with us was essential...
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