A staff member presents an alcohol product at the ProWein 2017, an international trade fair for wines and spirits, in Dusseldorf, Germany, on March 20, 2017. (Xinhua/Luo Huanhuan)
A staff member presents an alcohol product at the ProWein 2017, an international trade fair for wines and spirits, in Dusseldorf, Germany, on March 20, 2017. (Xinhua/Luo Huanhuan)