难

这本书对你来说读起来太难了。

這本書對你來說讀起來太難了。

This book is too difficult for you to read.

我们的任务到目前为止很轻松，但从现在开始将会变得很难。

我們的任務到目前爲止很輕鬆，但從現在開始將會變得很難。

Our task has been easy so far, but it will be difficult from now on.

很难在2、3年内掌握法语。

很難在2、3年內掌握法語。

It's quite difficult to master French in 2 or 3 years.

我发现读这本书很难。

我發現讀這本書很難。

I find this book is very difficult to read.

这本书很难在一周内读完。

這本書很難在一週內讀完。

This book is really difficult to finish reading in a week.