bellwether

n.系铃的公羊, 前导, 领导者, 群众的首领

bell captain, bell-bottomed, bell-bottoms, bell-buoy, bell-pull, bell-push, bell-ringer, bell-tent, bellboy, belle, belles-lettres, belletristic, bellhop, bellman, bellicose, bellicosity, belligerence, belligerent, belligerently, bellow, bellows, belly, belly-button, belly-dance, belly-dancer, belly-flop, belly-laugh, bellyache, bellyful, belong, belong in, belong to, belonging, belongings, beloved, below, belt, belt line, belting, bemoan, bemused,