Photo taken on March 25, 2020 shows the dock in Dalian, northeast China's Liaoning Province. As the coronavirus pandemic has been subdued in China, Dalian port saw an increasing container throughput in the past two weeks. (Xinhua/Yao Jianfeng)

Photo taken on March 25, 2020 shows the dock in Dalian, northeast China's Liaoning Province. As the coronavirus pandemic has been subdued in China, Dalian port saw an increasing container throughput in the past two weeks. (Xinhua/Yao Jianfeng)

Photo taken on March 25, 2020 shows the dock in Dalian, northeast China's Liaoning Province. As the coronavirus pandemic has been subdued in China, Dalian port saw an increasing container throughput in the past two weeks. (Xinhua/Yao Jianfeng)

Photo taken on March 25, 2020 shows the dock in Dalian, northeast China's Liaoning Province. As the coronavirus pandemic has been subdued in China, Dalian port saw an increasing container throughput in the past two weeks. (Xinhua/Yao Jianfeng)

Photo taken on March 25, 2020 shows the dock in Dalian, northeast China's Liaoning Province. As the coronavirus pandemic has been subdued in China, Dalian port saw an increasing container throughput in the past two weeks. (Xinhua/Yao Jianfeng)

Photo taken on March 25, 2020 shows the dock in Dalian, northeast China's Liaoning Province. As the coronavirus pandemic has been subdued in China, Dalian port saw an increasing container throughput in the past two weeks. (Xinhua/Yao Jianfeng)