noun 下载 🔗分享 贝类,有壳水生动物 An aquatic invertebrate having a shell, such as a mollusc or crustacean, especially when edible. Examples : "My family enjoyed the delicious shellfish at the seafood restaurant. " 我们一家人在海鲜餐厅享用了美味的贝类海鲜。 food animal biology ocean fish 与AI对话词汇游戏阅读练习