niproll

例句：

1. 1. The baby was niprolling on the grass.
   宝宝在草地上打滚。
2. 2. He took a nap after a longday at work.
   工作了一整天后，他小睡了一会儿。
3. 3. She was niprolling in her sleep.
   她在睡觉时打瞌睡了。