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"For China, it is an appropriate time to be a bullet train manufacturer in the world market," said Yu Weiping, CRRC's vice-president.

"For many people, logging into WeChat is the very first thing they do in the morning and the last thing they do at night. Gradually, Tencent has added new features to the original core function of messaging, which, from the perspective of users, are consistent with the app's positioning," he said.

"For a check list with 1,330 items, it takes three days for a worker to get the inspection work done. But with 5G and artificial intelligence technologies, we are able to finish it in just an hour. Efficiency of power grid equipment inspection has increased by 270 percent," Xie said, adding the substation has so far deployed a total of 1,036 intelligent devices, including inspection robots and 5G cameras.

"Graduation is a rite of passage between one stage of life and the next. The support of family and friends is crucial for our graduates. We are glad to see not just parents, but also grandparents present here. That inspires us to continue to bring the event to Beijing," says Hugh Brady, the president of the University of Bristol.

"For example, Shanghai maths for Year 1 students will focus on addition and subtraction. But here in the UK, we do a little bit of many things, including addition, subtraction, multiplication, fractions, and measurements. We overload our students. Their learning is too fragile," Knights said.