基本解释[生物学]角贝属词组短语短语elephant tusk shell 掘足类软体动物tusk shell更多词组英英字典柯林斯英英字典 any of various burrowing seashore molluscs of the genus Dentalium and related genera that have a long narrow tubular shell open at both ends: class Scaphopoda (Also called tooth shell)tusk shell剑桥字典tusk shell柯林斯字典专业释义生物学角贝属