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"Everything started from my beloved grandma," said Zhang Jiaxin, co-founder of See Young, which was developed by a student volunteer team at Beijing University of Posts and Telecommunications.

"Don't ask me, ask China that question," Trump responded. "They're losing their lives everywhere in the world and maybe that's a question you should ask China."

"Farmers should play a more active role in the development of high-standard farmland," ministry spokesman Guang Defu said. "The public will be informed of the construction work for supervision."

"During this special year under the influence of the pandemic, we have made efforts to inform expat residents of the latest epidemic situation and the city's measures through various channels, and we have provided extra services, including food and books, for those subject to home quarantine," she said.

"Educational robots can play the role of a teacher who cultivates students' operational ability by inspiring them to think and operate independently."