南京长江大桥是长江上首座由中国设计、采用国产材料建造的铁路、公路两用桥,上层的4车道公路桥长4589米,下层的双轨道铁路桥长6772米。铁路桥连接原来的天津一浦口和上海一南京两条铁路线,使火车过江从过去一个半小时缩短为现在的2分钟。大桥是南北交通的重要枢纽,也是南京的著名景点之一。

南京长江大桥的建成标志着中国桥梁建设的一个飞跃,大大方便了长江两岸的物资交流和人员来往,对促进经济发展和改善人民生活起到了巨大作用。

答案

The Nanjing Yangtze River Bridge is the first rail-road dual-use bridge over the Yangtze River designed by China and built with domestic materials. The upper 4-lane highway bridge is 4, 589 meters long, while the lower double-track railway bridge is 6, 772 meters long. The railway bridge connects the original Tianjin-Pukou and Shanghai-Nanjing railway lines, shortening the train crossing time from 1. 5 hours in the past to 2 minutes now. The bridge serves as an important junction of north-south traffic and is one of the famous scenic spots in Nanjing.

The completion of Nanjing Yangtze River Bridge marked a great leap forward in China’s bridge construction, greatly facilitating the exchange of goods and personnel of both sides of the Yangtze River, and playing a huge role in boosting economic development and improving people’s lives.

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