Sheep were nibbling the grass. 绵羊啃食着草地。
+at/on Mel nibbled at a chocolate biscuit. 梅尔一点一点地咬着一块巧克力饼干。
The parrot was nibbling her ear. 那只鹦鹉在轻轻地咬她耳朵。
Beware of hidden costs that can nibble away at your budget. 小心那些隐性消费会一点一点地消耗掉你的预算。