the act of working with another person or group of people to create or produce sth 合作；协作
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。
🔊🔊
~ (with sb) (on sth)
She wrote the book in collaboration with one of her students.
她和她的一个学生合写了这本书。
🔊🔊
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。
🔊🔊
~ (between A and B)
collaboration between the teachers and the government
教师和政府间的合作