crawl flip turn

例句：

1. 1. The caterpillar crawled on the leaves.
   毛毛虫在叶子上爬行。
2. 2. She crawled under the bed to hide from the storm.
   她爬进床下躲避暴风雨。
3. 3. The baby crawled across the floor to reach the toys.
   宝宝爬过地板去拿玩具。