整洁干净的

The city has made a concerted effort to curb pollution, clean up and pedestrianize the streets, spiff up the museums, build a new airport and invest in one of Europe's better public-transit systems.

经一致努力去抑制污染，街道被打扫干净，划分了行人区，整洁了博物馆，建了一个新的机场及投资建欧洲其中一个较好的公共交通系统。