Strange how these illusions will persist even in women as hard headed as you are.

我真奇怪连你这样一个精明而讲求实际的女人居然也会抱着这些幻想不放。

It's a big problem, and some scientists are wondering if we can learn anything from hard headed birds.

这是一个很重要的问题，一些科学家在想我们是否可以从硬脑袋鸟？身上学到什么东西。