By Bao Xinyan


For hundreds of years, vessels large and small have sailed along the current on either side of the Yangtze River when going downstream but looking for the path of least resistance when going upstream.

Before long, however, all vessels will have to deal with new traffic rules that go against many old habits.

Following international norms, all vessels will have to navigate on the right, just as vehicles do on roads in many countries ......
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