Visitors wearing masks to protect from the coronavirus look at a booth promoting robots at a trade fair in Beijing on Sunday, Sept. 6, 2020. China's export growth accelerated in August while imports edged lower as the world's second-largest economy extended its recovery from the coronavirus pandemic. (AP Photo/Ng Han Guan)

Visitors wearing masks to protect from the coronavirus look at surgical equipment displayed at a trade fair in Beijing on Sunday, Sept. 6, 2020. China's export growth accelerated in August while imports edged lower as the world's second-largest economy extended its recovery from the coronavirus pandemic. (AP Photo/Ng Han Guan)

Containers are placed at a port in Qingdao in eastern China's Shandong province on Tuesday, Sept. 1, 2020. China's export growth accelerated in August while imports edged lower as the world's second-largest economy extended its recovery from the coronavirus pandemic. (Chinatopix via AP)

Visitors wearing masks to protect from the coronavirus look at a robot displayed at a trade fair in Beijing on Sunday, Sept. 6, 2020. China's export growth accelerated in August while imports edged lower as the world's second-largest economy extended its recovery from the coronavirus pandemic. (AP Photo/Ng Han Guan)

Women wearing face masks to help curb the spread of the coronavirus with their purchased goods rest at a shopping mall in Beijing on Aug. 23, 2020. China's export growth accelerated in August while imports edged lower as the world's second-largest economy extended its recovery from the coronavirus pandemic. (AP Photo/Andy Wong)