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China is stepping up its fight against pollution and environmental degradation caused by decades of fast growth.

China has the largest livestock breeding industry in the world, and soybeans are a major source of protein in livestock feed. In 2017, China imported more than 32.85 million metric tons of soybeans from the US, accounting for 34.4 percent of China's total soybean imports.

China is the world's largest online game market. Statistics show that the market size hit 231 billion yuan (about .6 billion) in 2018, and is expected to reach 300 billion yuan in 2020, and 321.7 billion yuan in 2021.

China is the largest emitter of greenhouse gases in the world, mainly due to much of the country's energy comes from coal-fired power plants, a major source of the greenhouse gas carbon dioxide.

China hopes to work with Japan and South Korea to prevent the disease from spreading, heighten management of ports and reduce unnecessary travels, Zhao said.