地铁、空中电话及其出──重访美国杂记吴晋经美国回来两年半之后，又在美国作了一次历时四周的工作访问。两年半来，中国迅速发展，面貌日新月异，而美国同中国不一样，已经相对定型，在两三年的短时间里，很难觉察其变化。不过，不那么显眼的变化总还是有的纽约的地铁此... Subway, over the Air and Its Extensions── Revisiting U.S. Scribbler Wu Jinjing made a four-week working visit to the United States after returning from two and a half years in the United States. For two and a half years, China has seen rapid development and a rapid change of appearance. As the United States is not the same as China, it has been relatively stereotyped. It is hard to detect any change in the short period of two to three years. However, not so conspicuous changes in some of New York’s subway this ...