Have you ever thought that one day, high-speed rail will be able to run under the sea? As a significant country in infrastructure construction, China has been building roads and bridges frantically in recent decades. After the Hong Kong-Zhuhai-Macao Bridge, it has to Challenge another world puzzle. Builds The Longest Undersea Tunnel In The World! China is the buzzword as the American President celebrates 50 years of Amtrak service, China's infrastructure strength gives him goosebumps... Watch this review of China building the world's longest undersea high-speed rail tunnel, and tell us what you think. Enjoy!
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