系鈴羊,前導,領導者
Bellwether \Bell"weth`er\, n. 1. A wether, or sheep, which leads the flock, with a bell on his neck. 2. Hence: A leader. [Contemptuous] --Swift.
bellwether n 1: someone who assumes leadership of a movement or activity 2: sheep that leads the herd often wearing a bell