peck at

例句：

1. 1.The bird pecked at the crumbs on the ground.
   那只鸟啄了地上的面包屑。
2. 2. She pecked at the salad to see if it was still good.
   她啄了沙拉看看是否还好吃。
3. 3. The cat pecked at the mouse but missed its head.
   猫啄了老鼠但没啄到它的头。