英文英文字典
英文英文字典
古腾堡计划中的在线英语-英语词典
结果
Zaphrentis的结果
Zaphrentis
(n.)
An extinct genus of cyathophylloid corals common in the
Paleozoic formations. It is cup-shaped with numerous septa, and with a
deep pit in one side of the cup.