But it says there's uncertainty about what is or is not illegal, and the fact that so much on the internet is free only adds to the confusion.
there's uncertainty about: nobody knows for sure 没有人能确定,没有人能说得准
uncertainty: the state of being uncertain 犹豫,迟疑,无把握;不确定;不确信;易变;不可靠
There is considerable uncertainty about the company's future.
这家公司的前景相当渺茫.
He had an air of uncertainty about him.
他显出将信将疑的神情.
adds to the confusion: makes the situation even less clear 使(问题,情况)变得更加复杂
这里要注意下add to sth这个片语的意思,"to increase sth in size, number, amout etc.".它不仅可以指数量的增加,还可以指规模的扩大,而这里的规模,所指也很广泛,可以指实际意义上的规模,比如下面一个例子:
The house has been added to (= new rooms, etc. have been built on to it) from time to time.
这房子一次又一次地在扩建.
但也可以指抽象的"规模",比如困难(difficulty),困惑(confusion)等,就是说,使原本困难的事变得更加困难,原来就不清不楚的事情变的更加迷糊.
The bad weather only added to our difficulties.
恶劣的天气只是增加了我们的困难.
Add to sth这个用法很简单,也很常见,大家可以通过通读例句的方法来达到记忆的效果.