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Chen began her semester of volunteer work teaching English at the school in May, under Air China's corporate social responsibility program.

Child care has become a prominent issue for parents after the country allowed couples to have two children starting in 2016. There are currently about 50 million children under 3 years old, according to the National Health Commission.

Chen Ruimei tap, tap, taps a nail with pinpoint accuracy into one of the many porous holes that make the surface of a volcanic rock about the size of my own head. The nail skewers a sprig of dendrobium -- a type of orchid which has many commercial uses from tea, traditional Chinese medicine and even wine.

Chen Liteng, an analyst at the Internet Economy Institute, a domestic consultancy, said online education, online healthcare, sharing economy and other emerging industries will become the key driving forces for bolstering employment, stimulating investment and propping up consumption.

Chen Qihua, the company's China chairman, said at a news conference: "In the next two to three years, the country's construction machinery industry will continue to grow at a steady pace."