n.系铃的公羊,前导,领导者,群众的首领
For decades the company was the bellwether of the British economy.
几十年来，这家公司一直是英国经济的晴雨表。
University campuses are often the bellwether of change.
大学校园往往引领变革的新潮。
IBM is considered the bellwether stock on Wall Street.
国际商用机器公司的股票行情被视为华尔街股市的风向标。