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China has started building drought and flood resistant farmland since 2011, in a bid to ensure food security. By the end of 2018, China has already developed 640 million mu of such farmland, with grain output increasing 100 kg per mu on average.

In a country where food is so central to the culture, many well-educated city dwellers like Wang have returned to the countryside to dedicate themselves to fresher, healthier food.

According to Chen, their workforce comprised people from eight countries.

"I think both sides have very strong interests in coming to an agreement ... we will see increasingly the evidence that tariffs are actually disadvantaging the U.S. economy, reducing employment and slowing growth," said Lardy.

Meanwhile, China has developed the world's largest real-time ticket service website, with nearly 3.5 billion tickets sold annually. New technologies including face scan check-in have been applied in many train stations.