He found it easy to earn extra money. 他发现赚点额外收入是容易的. I found it difficult to understand the purport of his speech. 我发现要了解他演讲的主旨是非常困难的. I found it important to learn spoken English. 我发现学习英语口语是很重要的. They find it hard to master a foreign language. 他们发现要把握一门外语是困难的. I find it hard for him to work the problem out. 我发现解决这个问题对他来说很难.
