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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。
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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。
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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。