Coelarium
体腔膜, 间皮, 体腔上皮
🗣️ 情景例句
Lacks knowledge or experience.
知识匮乏或经验不足。
Archeologists still can only surmise as to the origin of Man.
考古学家们对于人类的起源依然无法推测。
That's all right.Goodbye.Enjoy yourself!
不用谢。再见。好好玩吧！