gnaw

啃，咬断，啮英释vvto keep biting something hard

1 gnaw at,啃，咬；侵蚀

1 Dexter gnawed his pen thoughtfully..德克斯特若有所思地咬着钢笔。

2 A rat had gnawed a hole in the box..老鼠在箱子上咬了一个洞。