Photo taken on Nov. 10, 2017 shows words left by U.S. First Lady Melania Trump during her visit to the giant panda enclosure at the Beijing Zoo in Beijing, capital of China. (Xinhua/Pang Xinglei)

U.S. First Lady Melania Trump poses for a group photo with pupils during her visit to the giant panda enclosure at the Beijing Zoo in Beijing, capital of China, Nov. 10, 2017. (Xinhua/Pang Xinglei)