bellwether

n.

系铃的公羊；前导；领导者；群众的首领

复数：bellwethers

1. Investors are now holding their breath to see if these two bellwether cities will witness drops in property prices.
   现在，投资者全都屏住了呼吸，静观这两座前导性城市的房价是否会跳水。

The Adélie Penguin:Bellwether of Climate Change
The Adélie Penguin: Bellwether of Climate Change
Ocean Acidification at High Latitudes: The Bellwether
Frontmatter : The Adélie Penguin Bellwether of Climate Change
Literature Cited : The Adélie Penguin Bellwether of Climate Change
Chapter 7. Predation : The Adélie Penguin Bellwether of Climate Change
Chapter 8. Demography : The Adélie Penguin Bellwether of Climate Change
Chapter 1. Introduction : The Adélie Penguin Bellwether of Climate Change
Chapter 2. Marine Ecology : The Adélie Penguin Bellwether of Climate Change
Chapter 4. The Annual Cycle : The Adélie Penguin Bellwether of Climate Change