grassroots
🇺🇸
/ˌɡræsˈruːts/
🇬🇧
/ˌɡrɑːsˈruːts/
The most basic level of an organization or society, often involving ordinary people.
The grassroots movement gained momentum as more people joined.
草根运动随着更多人的加入而获得了动力。