bellwether /ˈbɛlˌwɛðə/

• 1. 

  N-COUNT If you describe something as a bellwether, you mean that it is an indication of the way a situation is changing. 征兆; 风向标 [美国英语] [journalism] [usu sing, oft N n]

  例：

  The Methodist church is viewed as a bellwether of U.S. attitudes in large part.

  卫理公会派教堂在很大程度上被认为是美国立场的风向标。

  例：

  IBM is considered the bellwether stock on Wall Street.

  IBM的股票行情被认为是华尔街股市的风向标。