Whenmyson,Justin,wasfour,hefoundacaterpillar(毛毛虫)andpu...
问题详情： Whenmyson,Justin,wasfour,hefoundacaterpillar(毛毛虫)andputitinajar.Eachdayhefeditwithfreshgrassandleaves.Inafewweeksthecaterpillarwasfatandreadytosleep.Onemorningwediscoveredthecaterpillarwr...