someone who assumes leadership of a movement or activity
sheep that leads the herd often wearing a bell
造句
用作名詞(n.)
Investors are now holding their breath to see if these two bellwether cities will witness drops in property prices. 現(xiàn)在，投資者全都屏住了呼吸，靜觀這兩座前導(dǎo)性城市的房?jī)r(jià)是否會(huì)跳水。