Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, checks the ecological environment of the wetlands in the Yellow River Delta and learns about the ecological protection and high-quality development of the Yellow River basin at a national-level nature reserve of the river delta as he inspects the estuary of the Yellow River in the city of Dongying, East China's Shandong province, Oct 20, 2021. [Xinhua/Wang Ye]