毛毛虫变蝴蝶用英语怎么说超简单

Caterpillars changing into butterflies is a simple process in English. First, the caterpillar eats a lot to grow bigger. Then, it finds a safe spot and makes a small silk house called a cocoon. Inside the cocoon, the caterpillar changes into a pupa. This stage is like a transformation sleep. The pupa stays still and changes slowly inside. After a few days or weeks, the pupa comes out of the cocoon as a butterfly. The butterfly is different from the caterpillar—it has wings and can fly. This whole process is called metamorphosis. It’s amazing how a little caterpillar can turn into a beautiful butterfly! This change shows how life can transform and grow in wonderful ways.