an electronic device that is put inside a person’s body to help their heart beat regularly （心脏）起搏器 After his last heart attack, he was fitted with a pacemaker. 上次心脏病发作后，他装有起搏器。
- (also pacesetter especially in 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 Early pacemakers often drop out of a race before the finish. 早期的起搏器通常在比赛结束前就退出比赛。 - (figurative)
The big banks have been the pacesetters in developing the system. 大银行是发展这一体系的先驱。 🔊🔊
- (also pacesetter especially in North American English)
a person or team that is winning in a sports competition （竞赛中的）领先者，领先队伍