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"Dogs can hear high-frequency sounds that humans can't. By using such sounds, police can give the animals orders in situations in which they don't want to be heard, or from long distances," said Xu, a trainer at a police dog training base in suburban Beijing that is home to about 270 dogs.

"Cutting off the direct financing relationship between the fiscal department and the central bank, and preventing the monetization of fiscal deficit, are the basic principles for the bank credit and monetary system. Once this principle is abandoned, the system will collapse," said Sun.

"Economic and trade uncertainty, digital transformation and the impact of climate change are all challenges of our time, which will have a significant influence not only on what standards we develop but how we develop them," Walter said.

"Even though I'm a foreigner, I have always dreamed of finding a way to learn, share and discover Chinese culture," Linden said. "The Linden Center allows me to do just that."

"Disabled people in China don't need money or sympathy. What they need is opportunity," he said.