The chef can guide you to cook in real time online. The haircut brother shows you step by step how to give yourself a haircut through the online class. The Olympic champion shows how to exercise at home on the Internet. By the way, they show their magical sports ability. In fact, communications, networks, and big data are everywhere, providing strong support for medical treatment and prevention. It can be said that the huge role played by the Internet occupies an important position in the new order.
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