block party
noun [ C ] US uk/ˈblɒk ˌpɑː.ti/ us/ˈblɑːk ˌpɑːr.t̬i/
街区聚会，街区派对
a party that is held outdoors in a street or other public place, often organized by the people living in the local area
The family socialized with neighbors at annual block parties. 在每年的街区聚会上，一家人都会和邻居们一起参加社交活动。
Synonym: street party