合作者

例句：

1. 1.The cooperator was responsible for the project's success.
   这位合作者负责了项目的顺利进行。
2. 2.In a team, cooperators are those who contribute to the team's goals.
   在一个团队中，合作者是指那些为团队目标做出贡献的人。
3. 3.The cooperators were pleased with the results of the experiment.
   合作者们对实验的结果感到满意。