boom·burb
noun/ˈbuːmbɜːb/
/ˈbuːmbɜːrb/
(North American English)- an area of a city that is outside the centre and that is quickly becoming larger as many people move there
（人口快速增长的）市郊住宅区 - Many people have moved to the boomburbs at the edge of the city.
许多人搬到了城市边缘的郊区。
- Many people have moved to the boomburbs at the edge of the city.