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Chen Ping, a professor at Xi'an University of Architecture and Technology, said the collapse was caused by persistent rainfall in Xi'an in recent days and the collapsed section is 20 meters of a 130-meter covering structure that was built from 2007 and 2011 to protect the original ancient city wall. The original rammed earth of the cultural relic was not destroyed.
Chile reported 1,699 new daily COVID-19 infections on Tuesday, for a total of 589,189 confirmed cases, and 20 more deaths from the disease, raising the death toll to 16,217.
Chen Libo. [Photo provided to chinadaily.com.cn]
Chen also said compared with Amazon, domestic online retailers have a better understanding of local consumers' needs and how to operate in accordance with local market conditions.
Cheng Yuanziye, a volunteer and China Radio International broadcaster, said the technical terms and processes were difficult to understand at first.
