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Xi asked colleges to focus on the strategic needs of the country and accelerate their efforts to make breakthroughs in core technologies in key fields.

In 1957, a 40-year-old man could have been considered an elderly person in China, because official data shows the average life expectancy of the Chinese population at that time was just 57 years. In 2019, that number was 77.3 years.

The United States has not only renounced its international obligations, but also attempted to deprive developing countries of their legitimate right to development, Wang said.

It was a tough start. They were nearly bankrupted by running the online store. "We owed a debt of about 3 million yuan in the most difficult time," said Wu. "Our online shop experienced wax and wane as more people tried to take a share of the spoils."