A robot named "Xian'Er" is unveiled during the National Day Gala at Dragon Spring Temple in Beijing, capital of China, Oct. 1, 2015. "Xian'Er" robot monk, the protagonist of cartoon series "Trouble, you seek for yourself" published by Longquan (Dragon Spring) Temple, is developed by the temple with artificial intelligence experts, which is able to sense its surroundings and answer questions about Buddhism. (Xinhua/Xue Dongmei)