小毛毛虫的英文是 "caterpillar"。
这个词的词源来自古法语 "catepelose"，意思是 "hairy cat"。后来这个词被英语所采用，用来描述毛茸茸的毛虫。
例句：
The caterpillar was slowly making its way across the leaf. (这只小毛毛虫正在缓慢地爬过叶子。)
The caterpillar will eventually turn into a beautiful butterfly. (这只小毛毛虫最终会变成一只美丽的蝴蝶。)
The children watched in awe as the caterpillar transformed into a chrysaps. (孩子们敬畏地观察着小毛毛虫变成蝶蛹。)