collaboration
n. 合作，协作；勾结，通敌；合作成果
复数 collaborations
例句
It was a collaboration that produced extremely useful results.
这是一次带来极其有益的成果的合作。
《牛津词典》
The government worked in close collaboration with teachers on the new curriculum.
政府和教师就新的课程进行了紧密协作。
Much hangs on the success of the collaboration between the Group of Seven governments and Brazil.
很多事情都取决于七国政府集团与巴西之间合作的成功。
《柯林斯英汉双解大词典》
