noun 下载 🔗分享 双壳类，双壳纲。 Any mollusc belonging to the taxonomic class Bivalvia, characterized by a shell consisting of two hinged sections, such as a scallop, clam, mussel or oyster. Examples : "The seafood restaurant served many types of bivalves, including clams, oysters, and mussels. " 这家海鲜餐厅供应多种双壳类海鲜，包括蛤蜊、牡蛎和贻贝等。 animal organism food ocean biology nature fish 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 双壳类，双瓣壳。 A pericarp in which the seed case opens or splits into two parts or valves. Examples : "The bean pods dried in the sun, and we watched as the bivalves eventually split open, scattering the seeds. " 豆荚在阳光下晒干了，我们看着这些双瓣壳最终裂开，散落出种子。 animal biology 与AI对话词汇游戏阅读练习
