北上广深 (北上廣深) běi shàng guǎng shēn

běi shàng guǎng shēn proper noun Beijing, Guangzhou and Shenzhen
Domain: Modern Chinese 现代汉语 , Concept: Place Name 地名
Notes: Abbreviation for 北京、上海、广州、深圳 (CC-CEDICT '北上廣深')