1. The professor specializes in malacology and has published many papers on mollusk species.
这位教授专攻贝壳学，已经发表了很多关于软体动物物种的论文。
2. I find malacology fascinating, especially studying the diverse shells of different mollusks.
我发现贝壳学非常有趣，尤其是研究不同软体动物的各种贝壳。