collective bargain

例句：

1. 1.The union and management reached a collective bargainto improve working conditions.
   工会和管理层达成了一项集体协议，以改善工作条件。
2. 2.The company agreed to the collective bargainingprocess for better wages.
   公司同意进行集体谈判，以便争取更好的工资。
3. 3. Theworkers are negotiating a collectivebargain to secure better benefits.
   工人们正在谈判一项集体协议，以确保获得更好的福利。