摇尾幼虫

例句：

1. 1. The caterpillars are transforming into butterflies in the spring.
   春天，毛毛虫正在变成蝴蝶。
2. 2. The caterpillar is a stage of development for many insects.
   对于许多昆虫来说，毛虫阶段是其发展过程中的一个阶段。
3. 3. The caterpillar eats plant material and grows into a cocoon before emerging as a butterfly.
   毛虫吃植物材料并长出茧，然后变成蝴蝶。