partus precipitatus

例句：

1. 1.The caterpillar transformed into a butterfly during its life cycle.
   这只毛毛虫在其生命周期中变成了一只蝴蝶。
2. 2.The caterpillar is the first stage of the butterfly's life cycle.
   毛毛虫是蝴蝶生命周期的第一个阶段。
3. 3. During the winter months, caterpillars hibernate in their chrysalises.
   在冬季，毛毛虫会藏匿在它们的茧里。