pace-setter

例句：

1. 1. He is the pace-setter in his class.
   他是他班上的领跑者。
2. 2. The team's new coach is a pace-setter who has led them to success.
   该队的新教练是一个领跑者，带领他们取得了成功。
3. 3.She set a new pace-setter for her peers by completing the marathon first.
   她以完成马拉松比赛的优异成绩为同龄人树立了新的领跑者标杆。