But the Navajo homeland is harsh country, where it's hard to find good-paying jobs and all too easy to fall sway to alcoholism and despair.

VOA: standard.2010.03.22

This is necessary, it's hard to find holes in a Nobel Prize worthy idea.

这是很必要的，在一个获得诺贝尔的想法中,很难发现漏洞。

麻省理工公开课 - 化学原理课程节选

Some place in the middle is where the truth is, and it's hard to find.

事实往往在两种极端的中间,想找到它并不容易

耶鲁公开课 - 古希腊历史简介课程节选

Why is it so hard to find stem cells?

为什么寻找干细胞要如此大费周章呢

耶鲁公开课 - 生物医学工程探索课程节选