那个小狗正在啃骨头用英文怎么说

"That pttle dog is gnawing on a bone."

来源: "gnaw" 是由中古英语 "gnagan" 演变而来，意思是啃、咬。

例句:

The puppy is gnawing on a chew toy. (小狗在啃玩具。)
The squirrel is gnawing on an acorn. (松鼠在啃橡果。)
The beaver is gnawing on a tree branch. (海狸在啃树枝。)