NPR News:特朗普大挥关税屠刀 盟友称将以牙还牙

重点讲解：
1. be about to do sth. 即将（做…）的；快要（发生…）的；
例句：Meanwhile, two of the world's major central banks may be about to cut key interest rates in an attempt to boost the economy.
与此同时，世界两家主要中央银行可能即将降低基本利率，以期推动陷于困境的全球经济。
2. ever since 自从；打…以后一直；
例句：I simply gave in to him, and I've regretted it ever since.
我就向他屈服了，从那以后我一直后悔。
3. more or less 或多或少；大概；几乎；
例句：They swayed back and forth, more or less in sync with the music.
他们来回摇摆，基本上与音乐同步。
4. shore up 支撑；支持；加强；
例句：Investors were hoping the report would prompt Washington to take broader steps to shore up the economy.
投资者希望这份报告会促使华盛顿采取更广泛的措施来支撑经济。