Photo taken on April 16, 2018 shows cargo containers of China Railway Express at Duisburg Intermodal Terminal (DIT) in Duisburg, western Germany. Duisburg, Germany's biggest inland port and one of the important slots of China Railway Express (CRE), has witnessed fruitful results of the Belt and Road Initiative over the past few years and harvested its own urban economic growth. (Xinhua/Luo Huanhuan)

Photo taken on April 16, 2018 shows cargo containers of China Railway Express at Duisburg Intermodal Terminal (DIT) in Duisburg, western Germany. Duisburg, Germany's biggest inland port and one of the important slots of China Railway Express (CRE), has witnessed fruitful results of the Belt and Road Initiative over the past few years and harvested its own urban economic growth. (Xinhua/Luo Huanhuan)

Photo taken on April 16, 2018 shows cargo containers of China Railway Express at Duisburg Intermodal Terminal (DIT) in Duisburg, western Germany. Duisburg, Germany's biggest inland port and one of the important slots of China Railway Express (CRE), has witnessed fruitful results of the Belt and Road Initiative over the past few years and harvested its own urban economic growth. (Xinhua/Luo Huanhuan)

Photo taken on April 16, 2018 shows cargo containers of China Railway Express at Duisburg Intermodal Terminal (DIT) in Duisburg, western Germany. Duisburg, Germany's biggest inland port and one of the important slots of China Railway Express (CRE), has witnessed fruitful results of the Belt and Road Initiative over the past few years and harvested its own urban economic growth. (Xinhua/Luo Huanhuan)

Photo taken on April 16, 2018 shows cargo containers of China Railway Express at Duisburg Intermodal Terminal (DIT) in Duisburg, western Germany. Duisburg, Germany's biggest inland port and one of the important slots of China Railway Express (CRE), has witnessed fruitful results of the Belt and Road Initiative over the past few years and harvested its own urban economic growth. (Xinhua/Luo Huanhuan)