also pacesetter, uk/-ˌset.ər/ us/-ˌset̬.ɚ/ the person or animal that establishes the speed in a race, or a person or organization that is an example for others by being successful领跑人,领跑动物;带头人,标兵
a small device that is put inside someone's chest in order to help the heart beat at the correct speed心脏起搏器
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