3月12日，美国对进口的所有钢铁、铝产品征收25%的关税开始生效，这对全球经济会带来什么影响？

"We spoke with the big three auto dealers (makers), we are going to give a one-month exemption on any autos coming through USMCA. Reciprocal tariffs will still go into effect on April 2," White House ...