On January 20, Donald Trump was sworn in as the 47th president of the United States. Immediately afterward, he began to implement a series of "America First" policies. In terms of international trade, ...

特朗普没有参加拜登的就职典礼，打破了长期以来的传统——他是自1869年安德鲁·约翰逊（Andrew Johnson）以来第一位不参加继任者就职典礼的在任总统。 但拜登的就职典礼依然星光熠熠， Lady Gaga、詹妮弗·洛佩兹（Jennifer ...