皇冠体育app has world's largest high-speed rail network
(Xinhua) Updated: 2016-02-29 11:55
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File photo taken on Dec 29, 2015 shows a bullet train running on the western part of a loop line of Hainan high-speed railway in South 皇冠体育app's island of Hainan province. [Photo/Xinhua] |
