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Besides, some industry insiders suggested scenic areas should optimize the proportion of on-site ticketing and online ticketing to satisfy senior tourists' demands, letting more people enjoy safe and convenient travel and leisure experiences.

Bezos was also an early backer of Uber, as Bezos Expeditions participated in a million round back in 2011. Uber is targeting a 0 billion valuation as it prepares to go public this year.

Biden, who turns 78 on Nov 20, would be the oldest person to become president if elected. Biden's age also has led to broad speculation he may serve only one term, making Harris a potential top contender for the nomination in 2024. Some of his allies were concerned that would make her a bad fit for the No 2 job and questioned her loyalty, reported Reuters.

Besides, he said the accusation from some US officials on Huawei's link with the Chinese government is groundless, and if they believe Huawei has access to and controls user information, others can also suspect the technologies of Western companies have similar control over information.