第一，迷你对话

A: It seems you're very busy recently.

你最近看起来很忙。

B: Yeah. I have a sudden interest in philosophy and I'm digging into it these days.

是的，我突然对哲学十分感兴趣，最近一直在钻研哲学。

第二，词海拾贝

dig into：专研（学问）

e.g. Our shop, in fact, was just beginning to dig into the problem.

事实上，我们的工厂刚刚开始研究这个问题。

e.g. They digged into what was unknown in order to make it known.

他们钻研未知的东西，以便变不知为已知。

e.g. He is digging into Chinese history.

他正在钻研中国历史。

第三，语汇积累

have a interest in：对......感兴趣

e.g. We have a crucial interest in this topic.

我们对这一论题极感兴趣。

e.g. They had a passing interest in music.

他们对音乐有过一时的兴趣。