Chinese President Xi Jinping (L) shakes hands with U.S. President Barack Obama during a welcome ceremony at the South Lawn of the White House in Washington D.C., the United States, Sept. 25, 2015. Xi arrived in Washington, the second stop of his state visit to the United States, on Thursday after a busy two-and-a-half-day stay in Seattle. (Xinhua/Huang Jingwen)
