题目内容：

What they found,in attempting to model thought,is that the human brain’s roughly one hundred billion nerve cells are much more talented -- and human perception far more complicated -- than previously imagined.
之中的破折号有什么用?有没有其他的表达形式

优质解答

我认为第一个破折号表示解释,第二个表示加强语气的作用.如果不用就达不到作者要表达的效果.