nibble的意思是什么

　　第三人称单数：nibbles；现在分词：nibbling；过去式：nibbled；过去分词：nibbled。

　　例句：

　　His teeth having all droped out, he could only nibble away at his food.

　　他的牙都掉光了，只好小口地咬着吃。

　　She nibbled at a sandwich.

　　她一小口一小口地吃三明治。

　　A fish nibbles at the bait.

　　一条鱼在轻轻地啃鱼饵。