Queen Mathilde of Belgium writes down a Chinese character of "You", meaning friendship, as she and Chinese President Xi Jinping's wife Peng Liyuan (3rd R), visit Beijing Experimental School for the Deaf in Beijing, capital of China, June 24, 2015. Peng Liyuan and Queen Mathilde of Belgium visited Beijing Experimental School for the Deaf, and the People's Liberation Army Academy of Art on Wednesday.Photo: Xinhua

Chinese President Xi Jinping's wife Peng Liyuan (4th L, front) and Queen Mathilde of Belgium (2nd L, front) communicate with students from Beijing Experimental School for the Deaf in Beijing, capital of China, June 24, 2015. Peng Liyuan and Queen Mathilde of Belgium visited Beijing Experimental School for the Deaf, and the People's Liberation Army Academy of Art on Wednesday. Photo: Xinhua

Chinese President Xi Jinping's wife Peng Liyuan and Queen Mathilde of Belgium watch children performing at the Beijing Experimental School for the Deaf in Beijing, capital of China, June 24, 2015. Peng Liyuan and Queen Mathilde of Belgium visited Beijing Experimental School for the Deaf, and the People's Liberation Army Academy of Art on Wednesday. Photo: Xinhua

Chinese President Xi Jinping's wife Peng Liyuan (2nd R, front) and Queen Mathilde of Belgium (3rd R, front) look at pottery artworks by students from Beijing Experimental School for the Deaf in Beijing, capital of China, June 24, 2015. Peng Liyuan and Queen Mathilde of Belgium visited Beijing Experimental School for the Deaf, and the People's Liberation Army Academy of Art on Wednesday. Photo: Xinhua

Chinese President Xi Jinping's wife Peng Liyuan (2nd L, front) and Queen Mathilde of Belgium (4th L, front) talk with students at the People's Liberation Army Academy of Art in Beijing, capital of China, June 24, 2015. Peng Liyuan and Queen Mathilde of Belgium visited Beijing Experimental School for the Deaf, and the People's Liberation Army Academy of Art on Wednesday. Photo: Xinhua

Chinese President Xi Jinping's wife Peng Liyuan (2nd L, front) and Queen Mathilde of Belgium (3rd L, front) watch a display of works at the People's Liberation Army Academy of Art in Beijing, capital of China, June 24, 2015. Peng Liyuan and Queen Mathilde of Belgium visited Beijing Experimental School for the Deaf, and the People's Liberation Army Academy of Art on Wednesday.Photo: Xinhua

Chinese President Xi Jinping's wife Peng Liyuan and Queen Mathilde of Belgium watch an exhibition at the People's Liberation Army Academy of Art in Beijing, capital of China, June 24, 2015. Peng Liyuan and Queen Mathilde of Belgium visited Beijing Experimental School for the Deaf, and the People's Liberation Army Academy of Art on Wednesday.Photo: Xinhua