pacesetter
noun🔊/ˈpeɪssetə(r)/
🔊/ˈpeɪssetər/
(especially North American English) (also pacemaker British and North American English)
a person or an animal that begins a race quickly so that the other people taking part will try to copy the speed and run a fast race 领跑人；领跑动物 a person or team that is winning in a sports competition （竞赛中的）领先者，领先队伍