1 [C] a large and important town 城市: Venice is one of the most beautiful cities in the world. 威尼斯为全球最美丽的城市之一。Many people are worried about housing conditions in Britain's inner cities (= the central parts where there are often social problems). 英国城市市内旧城区的居住环境引起广泛忧虑。the city centre 市中心

2 the City [sing] the oldest part of London, which is now Britain's financial centre 伦敦金融区（伦敦的最古老部份，现为英国的金融中心）