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.
城市已经
致努力
污染，街道被打扫干净，划分了行人区，整洁了博
馆，建设了
新的机场及投资建设欧洲其中
好的公共交通系统。
