![](http://www.ecns.cn/hd/2020/08/14/be882874e2e542c783fbf65c97cd74bf.jpg)
A staff member collects swab samples from an agricultural product for COVID-19 test in a temporary trading area at the Xinfadi wholesale market in Beijing, capital of China, Aug. 6, 2020. (Xinhua/Zhang Chenlin)
![](http://www.ecns.cn/hd/2020/08/14/bdcfd97792b74c89ba819c671620060f.jpg)
Customers shop in a vegetable market set up outside the Xinfadi wholesale market in Beijing, capital of China, Aug. 6, 2020. (Xinhua/Zhang Chenlin)
![](http://www.ecns.cn/hd/2020/08/14/50f629af4d1a4aa5a39b874f6fc04102.jpg)
Merchants sell agricultural products in a temporary trading area at the Xinfadi wholesale market in Beijing, capital of China, Aug. 6, 2020. (Xinhua/Zhang Chenlin)
![](http://www.ecns.cn/hd/2020/08/14/72b206d2ea2c4937897765eea39777ca.jpg)
A merchant unloads apples in a temporary trading area at the Xinfadi wholesale market in Beijing, capital of China, Aug. 6, 2020. (Xinhua/Zhang Chenlin)