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China has nearly 40,000 kilometers of high-speed rail tracks. At the moment, this is just a dream for other countries. But how did China do it? And at what cost? #balatram #highspeedtrains #NotPlanetB #PlanetA www.dw.com/brasil www.twitter.com/dw_brasil www.instagram.com/dw.brasil www.facebook.com/dw.brasil