nibble

n. 轻咬,啃
v. 一点点地咬,慢慢啃
vt. 咬

Food and rent nibbled away at the money they had saved.

花在食物和房租上的钱把他们的积蓄一点一点耗掉了。

The mice have nibbled a hole in the cheese.

老鼠在奶酪上啃出了一个洞。