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The "icebreakers" spirit not only shows the willingness of the British people to develop friendly cooperation with China, but also demonstrates that the development momentum of human society towards a more open and inclusive future is unstoppable, Li said.

All sides shall exercise their rights and fulfill their obligations under this convention in accordance with the principles of sovereign equality, territorial integrity of states and non-interference in internal affairs of other states, the convention said.

If researchers are able to maintain entanglement over long distances, an "hack-proof" messaging encryption system could evolve, according to Pan's study published in the journal Science in June of 2017.

Cai said the Sino-Portuguese relations are increasingly showing great development potential and good development prospects.

Hundreds of millions of Chinese go back to their hometowns to celebrate the Chinese Lunar New Year each year, creating an annual travel rush around the festival that often puts the transport system to the test.