![A visitor takes photos of the stamps showing China\'s global influence during the \](http://www.ecns.cn/hd/2018/12/12/6b49d45fb6034c18964a1faa370f66db.jpg)
A visitor takes photos of the stamps showing China's global influence during the "China-Great Change" stamp exhibition in Leuven, Belgium, Dec. 11, 2018. A large-scale stamp exhibition was opened Tuesday at Belgium's University of Leuven to commemorate the 40th anniversary of China's reform and opening up. Themed "China - Great Change", the exhibition, showcasing 188 stamps, aims to offer a glimpse into the significant changes that have transpired in China over the last four decades. (Xinhua/Zheng Huansong)
![Visitors watch the stamps showing China\'s global influence during the \](http://www.ecns.cn/hd/2018/12/12/ef42c89d220049928301b35fdc820f64.jpg)
Visitors watch the stamps showing China's global influence during the "China-Great Change" stamp exhibition in Leuven, Belgium, Dec. 11, 2018. A large-scale stamp exhibition was opened Tuesday at Belgium's University of Leuven to commemorate the 40th anniversary of China's reform and opening up. Themed "China - Great Change", the exhibition, showcasing 188 stamps, aims to offer a glimpse into the significant changes that have transpired in China over the last four decades. (Xinhua/Zheng Huansong)
![Visitors watch the stamps showing China\'s science and technology achievements during the \](http://www.ecns.cn/hd/2018/12/12/cce82530fe014d849e48e50b30908c93.jpg)
Visitors watch the stamps showing China's science and technology achievements during the "China-Great Change" stamp exhibition in Leuven, Belgium, Dec. 11, 2018. A large-scale stamp exhibition was opened Tuesday at Belgium's University of Leuven to commemorate the 40th anniversary of China's reform and opening up. Themed "China - Great Change", the exhibition, showcasing 188 stamps, aims to offer a glimpse into the significant changes that have transpired in China over the last four decades. (Xinhua/Zheng Huansong)
![A visitor watches the stamps showing China\'s economic achievements during the \](http://www.ecns.cn/hd/2018/12/12/bf86ac295e8f477b99daae02dbe25c7c.jpg)
A visitor watches the stamps showing China's economic achievements during the "China-Great Change" stamp exhibition in Leuven, Belgium, Dec. 11, 2018. A large-scale stamp exhibition was opened Tuesday at Belgium's University of Leuven to commemorate the 40th anniversary of China's reform and opening up. Themed "China - Great Change", the exhibition, showcasing 188 stamps, aims to offer a glimpse into the significant changes that have transpired in China over the last four decades. (Xinhua/Zheng Huansong)
![A visitor takes photos of the stamps showing China\'s economic achievements during the \](http://www.ecns.cn/hd/2018/12/12/ff4d26089bca4d618e10b28734a2619b.jpg)
A visitor takes photos of the stamps showing China's economic achievements during the "China-Great Change" stamp exhibition in Leuven, Belgium, Dec. 11, 2018. A large-scale stamp exhibition was opened Tuesday at Belgium's University of Leuven to commemorate the 40th anniversary of China's reform and opening up. Themed "China - Great Change", the exhibition, showcasing 188 stamps, aims to offer a glimpse into the significant changes that have transpired in China over the last four decades. (Xinhua/Zheng Huansong)
![Visitors watch the stamps showing China\'s economic achievements during the \](http://www.ecns.cn/hd/2018/12/12/c64084d394d04a8bbf3076f24c86ab32.jpg)
Visitors watch the stamps showing China's economic achievements during the "China-Great Change" stamp exhibition in Leuven, Belgium, Dec. 11, 2018. A large-scale stamp exhibition was opened Tuesday at Belgium's University of Leuven to commemorate the 40th anniversary of China's reform and opening up. Themed "China - Great Change", the exhibition, showcasing 188 stamps, aims to offer a glimpse into the significant changes that have transpired in China over the last four decades. (Xinhua/Zheng Huansong)