formal alternation

例句：

1. 1. The company's policy on gender equality has undergone a formal alternation in recent years.
   该公司近年来对性别平等的政策进行了正式调整。
2. 2.During the formal alternation, the team worked tirelessly to ensure the project was completed on time.
   在正式交替期间，团队努力不懈，以确保项目按时完成。
3. 3.The formal alternation between the two leaders had a significant impact on the team's performance.
   两位领导人之间的正式交替对团队的表现产生了重大影响。