食木虫

例句：

1. 1. The caterpillar eats its own cocoon to grow into a butterfly.
   这只毛毛虫吃自己的茧，变成一只蝴蝶。
2. 2. The caterpillar is a symbol of growth and transformation.
   这只毛毛虫象征着成长和变化。
3. 3. The caterpillar's life cycle is fascinating to watch.
   这只毛毛虫的生命周期令人着迷。