Few people know better than Cao Yi how to live life in the fast lane and literally get the most out of it In her mid-30s,Cao works in Shanghai but has chosen to live in Suzhou,nearly 110 km away,where the cost of living is much cheaper.Spanning two cities daily has become viable thanks to the high-speed railway system,China's new shuttle bus for commuters who rush to work every day in a different city.
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