noun 下载 🔗分享 层孔虫,叠层石海绵。 Any of several fossil sponges, of the clade †Stromatoporoidea. Examples : "The science class studied the ancient coral reef, identifying stromatoporoids among other fossils. " 科学课研究了古老的珊瑚礁,并在其他化石中辨认出了层孔虫(叠层石海绵)。 geology organism biology science 与AI对话词汇游戏阅读练习