a small , long animal with many legs , which feeds on the leaves of plants , and develops into a butterfly or moth
发音
例句
1. A butterfly is produced by metamorphosis from a caterpillar. 蝴蝶是由毛虫脱胎变成的。 2. A caterpillar must pass through the cocoon stage to become a butterfly. 毛毛虫必须经过茧的阶段才能变成蝴蝶。