更新我做的美国对中国的关税记录

https://bbs.wenxuecity.com/currentevent/3670312.html

20%， announced before 4/2

34%， announced 4/2, 累计 54%

50%,  announced 4/7, 累计104%

announced 125% 4/9 ： https://www.bbc.com/news/articles/c5y66qe404po 

announced 145% 4/10， it is 125%+20% （before 4/2）。

announced exempt for smartphones, computers, some electronics, 4/12. This accounts about more than 1/4 of all china imports. 

20+10=30%， announced 5/12 (after negotiation). https://www.bbc.com/news/articles/czx0ry7kdk5o