China and the EU vowed to jointly uphold the multilateral trading system with the WTO at its core; China rolls out “refund-upon-purchase” tax policy nationwide for foreign tourists.

一项最新民调显示，美国总统特朗普的支持率创下他自1月20日就职以来的新低。 总部位于华盛顿的民调、情报和洞察公司 ...