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美国两条铁轨之间的标准距离是4英尺又8.5英寸。这个有整有零的奇怪标准就是英国铁路的标准,美国铁路最初是由英国人建的,所以沿用此标准。英国的铁路最初是由造有轨电车的人设计的,有轨电车就
The standard distance between two railroad tracks in the United States is 4 feet and 8.5 inches. This strange standard of zero is the standard of the British Railways. The American Railways were originally built by the British, so follow this standard. The British railroad was originally designed by a tram-built tram