Diplasiocoela
双凹亚目
🗣️ 情景例句
Where's Robbie? Robbie
在哪儿？
How far is it from the shore of the Atlantic to the mountains?
从大西洋海岸到山脉有多远？
Now that they could ride horses, it became easier to hunt the bison, a type of cattle which used to exist in huge numbers on the plains of America.
当他们从一个营地搬到另一个营地去的时候，他们就可以利用这些野马来运载货物。既然土著人会骑马了，猎取野牛也就容易了。这种野牛以前是成群结队地生活在美洲平原上的。