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"Currently China lacks specific data on myopia, but clinical experience shows myopia is occurring at a younger age and worsening at a faster rate in China than the rest of the world," said Long Qin, a senior ophthalmologist at Peking Union Medical College Hospital.

"Currently, there are 144 comprehensive bonded zones," said Chen Zhenchong, a leading official in charge of the customs body, adding the zones are of the highest level of openness, with the most favorable policies, complete functions and simplified procedures in China.

"China's sharing economy market and the employment in the sector witnessed rapid growth despite rising macroeconomic downward pressure," said Yu Fengxia, deputy director of the Sharing Economy Research Center.

"Chinese companies may overlook the regulatory and compliance complications of investing in the country. These include an intricate tax regime and stringent rules around employment and data protection."

"Chinese companies need to join forces in overseas expansion, and beef up their respective advantages. They should keep away from vicious competition," he added, referring specially to a previous irrational investment frenzy.