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"Free baozi and porridge is offered to sanitation workers and poor customers who ask for them," said Wang. "They are paid for by other customers in advance when they buy their own meals."

"Flexibility in this year's specific timing and pace of rolling out the reform can be expected, given the lingering uncertainty of the virus," said Liu Wenqiang, a researcher with Shenzhen-based Great Wall Securities.

"For one thing, mobile payment methods significantly save passengers' time and make travel more efficient. For another, since the government administers the whole railway transportation system, it's easier for it to develop and roll out a unified payment system on a nationwide basis."

"For example, when constructing roads, sometimes it is necessary to demolish houses, cut down trees or occupy farmland," he said. "Some villages refuse to cooperate and it can be very difficult to persuade them otherwise."

"For me, every single tree I plant shows my life's value and this makes me happier," he said. "Until I pass on, I will continue fighting with the sand."