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BEIJING, July 28 (Xinhua) -- China has always strictly implemented international laws including the United Nations Convention on the Law of the Sea (UNCLOS), and never expanded its claims of sovereignty, a spokesperson said on Tuesday.

In 2019, Zhuhai saw a gross domestic output of 343.59 billion yuan (about 50.4 billion U.S. dollars), up from 209 million yuan in 1979.

Noting that medical workers are a vital force in advancing the cause of healthcare, Xi said since the COVID-19 outbreak, a great number of medical workers have raced against time and fought tenaciously against the virus at the frontlines.

Zhao said that from the perspective of some U.S. politicians, the so-called liberalization of the internet is nothing but Americanization, and so-called national security is simply a byword for "American double standards."

The Chinese economy bounced back to growth in the second quarter of 2020, expanding 3.2 percent year on year. Major indicators returned to growth, economic performance steadily recovered and market expectations were positive in general.