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。

Their captors told them they would be killed unless they cooperated.

抓住他们的人说如果他们不配合就杀掉他们。

The three clubs cooperated in planning a party.

这三个俱乐部合作准备举办一个晚会。

Everything cooperated to make the party a success.

各种因素配合使聚会非常成功。

I'm glad to have cooperated with you for two years.

很高兴与你们保持长达两年的合作。