cooperation的所有形式
动词是cooperate，表示合作，协作的意思；形容词是cooperative，表示协作的意思，例如： 1.Are you going to cooperate or do we have to get physical?你是合作呢，还是要我们动手？ 2.They had cooperated closely in the planning of the project.他们曾密切合作，共同规划这一项目。 3.The two groups agreed to cooperate with...