我们在黄石公园看到了几只雄性大角羊在岩石上跳跃。

We saw several male ___bighorn sheep leaping on the rocks in Yellowstone National Park.

比格霍恩河发源于怀俄明州的山区，向北流入蒙大拿州。

The ___Bighorn River originates in the mountains of Wyoming and flows north into Montana.

我们在落基山脉看到了几只大角羊。

We spotted several ___bighorn sheep in the Rocky Mountains.