都可以的，不过前者比较常用一些（后者比较学术一些）~例句：毛毛虫吃这种植物的嫩叶。Caterpillars eat the young leaves of this plant.我看见一条毛毛虫在叶子上.I saw a caterpillar on the leaf.毛毛虫必须经过茧的阶段才能变成蝴蝶.A caterpillar must pass through the cocoon stage to become a butterfly.毛毛虫变成了蝴蝶。The caterpillar was transformed into a butterfly.看那只毛毛虫正在吃你的苹果。Look at the caterpillar eating your apple.交通就像毛毛虫一样在蠕动!The traffic just moves like a worm!毛毛虫最终将蜕变成蝴只一蝶。The caterpillar will eventually metamorphose into a butterfly.毛毛虫可以变成蝴蝶。Caterpillars turn into butterflies.
都可以的，毛毛虫Caterpillar(s) / carpenterworm(s)。只是前者用的多一些。caterpillar[英][ˈkætəpɪlə(r)][美][ˈkætərpɪlə(r)]n.毛虫; 履带; 履带拖拉机; 复数：caterpillars1.A caterpillar is the larva of a butterfly.毛虫是蝴蝶的幼体。2And caterpillar was duped into thinking the company was worth much more than it actually was.卡特彼勒公司被骗相信年代煤矿机电公司具有很高的价值。3A caterpillar changed into a butterfly.毛虫变成了蝴蝶。
吃了个肚歪
