下城

Downtown is a term primarily used in American and Canadian English to refer to a city's sometimes commercial, cultural and often the historical, political, and geographic heart. It is often synonymous with its central business district (CBD). It may also be a center for shopping and entertainment. Downtowns typically contain a small percentage of a city's employment but are concentrated in services, including high-end services (office or white-collar jobs). Sometimes, smaller downtowns include lower population densities and lower incomes than nearby suburbs. It is often distinguished as a hub