CNN News:特朗普正式决定对进口钢铁和铝产品征收高关税

重点讲解：
1. take effect 开始实施；生效；有效；
例句：The traffic laws don't take effect until the end of the year.
交通法要到年底才生效。
2. apply to 适用；适合；
例句：The convention does not apply to us.
这条惯例对我们不适用。
3. encourage sb. to do sth. 鼓励；激励；
例句：We want to encourage people to go fishing, not put them off.
我们希望鼓励人们去垂钓，而不是打消他们的热情。
4. wind up 最终沦落到；最终落得；(以…)告终；
例句：But if you wholesale accept that attitude, you wind up making many mistakes you could have avoided.
但是如果你全盘的接受这种观念，终归会犯一些本可避免的错误。