noun 下载 🔗分享 贻贝,蚌类。 Any of several groups of bivalve shellfish with elongated, asymmetrical shells Examples : "The biologist carefully examined the mussel clinging to the rocks by the river. " 那位生物学家仔细地检查了紧紧吸附在河边岩石上的那只贻贝。 food animal biology ocean 与AI对话词汇游戏阅读练习