脱口说英语口语校园习语大全
D-2：dig into钻研（学问）
A:It seems you're very busy recently. A: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. B：是的。我突然对哲学十分感兴趣，最近一直在钻研哲学。