Orthothecida
直管螺目
🗣️ 情景例句
It's over.
结束了。
While we were having breakfast,John was talking on the telephone.
当我们正在吃早餐时，约翰正在打电话。
It's about the universe. The speaker's supposed to be excellent.
是关于宇宙的。演讲人应该是一流的吧。