county fair
noun [ C ] uk/ˌkaʊn.ti ˈfeər/ us/ˌkaʊn.t̬i ˈfer/ (also state fair)
（美国每年夏季的）县集市
a large public event that happens every summer in US counties, with rides, games, and competitions for the best animal, best cooked dish, etc.
She won first prize for her raspberry preserves at the Mitchell county fair. 她的山莓酱在米切尔县集市上赢得了一等奖。