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American flags fly outside the New York Stock Exchange on April 13, 2020. [Photo/Xinhua]

Among senior WeChat users, 85 percent use WeChat for social interaction, including sending voice messages, video chatting and seeing their WeChat friends' posts. Sixty-five percent read articles posted by companies and organizations' official accounts. Half of them use the payment functions on WeChat, according to Tencent.

Amid trade tensions between the US and China, it's noteworthy that GAC chose Detroit and the state of Michigan to announce its US ambitions. While the city, state and their most important industry are recovering from the 2008 financial crisis, there is some sensitivity over trade that was fanned by US President Donald Trump in the 2016 presidential election.

Amazon’s Prime program has reached 63 million members in the U.S. — an increase of 43 percent over the past year —?surpassing 50 percent of the company’s U.S. customer base for the first time, according to a new estimate?released earlier this month.

Amazon’s answer to this delicate problem is its FreeTime feature, which includes parental controls?that provide the ability to set time limits on devices, block specific services and skills and exclude explicit songs. FreeTime also enables Alexa to respond with age-appropriate questions when its activated through the Alexa app.