美国第二大城市芝加哥——拥有七百一十万人口,仅次于纽约,不仅是作为汇接美国的三十二条铁路干线的巨大铁路枢纽而闻名于世,并拥有众多的“世界第一”,如:高达四百八十四米的摩天大厦、平均每个市民占有的商场面积以及飞机场每天降落和起飞的班机的架数等等。 Chicago, the second-largest city in the United States, with 7.1 million people, second only to New York City, is not only known as a huge railway hub that merges the United States’ thirty-two rail links, One "such as skyscrapers up to 4,484 meters, the average area of ​​shopping centers owned by each citizen, the number of flights each day landing and taking off at the airport, and so on.