fēng​xiàng​biāo

bellwether

风向标 (風向標) fēng​xiàng​biāo
bellwether noun
a person or thing that serves as an indicator of trends or future developments

Stock market fluctuations are often seen as a bellwether of national economic development.

weather vane noun
a device used to indicate the direction of the wind, such as a weather vane, windsock, or vane

A metal weather vane was installed on the barn roof.

Frequency

Movie subtitles
0.120 per million appears in 0% of films
Written text
3.29 per million

Sources

Definitions
CC-CEDICT