Chinese President Xi Jinping presses a button on an interactive display, after which a beating heart glowed on a big screen, when visiting an exhibition profiling the achievements made in Hong Kong since its return to the motherland in 1997 in Beijing, capital of China, June 26, 2017. The display, named "concentric circles," showed that Hong Kong compatriots and all other Chinese people are of one heart and contribute together to the nation's development. (Xinhua/Yao Dawei)
