China finished the first high-speed railway tunnel under the Yangtze River on Friday, marking a major step forward in the construction of a line that will one day connect the inland of the country with the coast. The 11. 9km (7.
Source: [SCMP](https://www.scmp.com/news/china/politics/article/3361842/china-completes-first-high-speed-rail-tunnel-under-yangtze-river?utm_source=rss_feed)