小蜗牛：但是我的蚯蚓哥哥也爬不快，也没有变成蝴蝶，为什么他也没有外壳呢？
Small Snail: but my brother did not earthworms unpleasant climb the bones will not become a butterfly he does not back the hard shell it again?
小蜗牛：毛虫姊姊没有骨头，也爬不快，为什么她却不用背这个又硬又重的壳呢?。
Small snail: sister no bones caterpillars but also unpleasant climb why she did not back the hard shell it again?
小蜗牛：可是蚯蚓弟弟也没骨头爬不快，也不会变成蝴蝶他什么不背这个又硬又重的壳呢？
Small Snail: but my brother did not earthworms unpleasant climb the bones will not become a butterfly he does not back the hard shell it again?
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