有一天，小明和小华去参加一个宠物狗展览。他们在展厅里看到了一只特别可爱的狗狗，它的毛色五颜六色，看起来非常独特。

    小明忍不住问展览员：“这只狗狗的品种是什么？怎么这么漂亮？”

    展览员笑着回答：“这是我们最新培育出来的品种，叫做‘彩虹犬’。”

    小华听后一脸疑惑地问：“彩虹犬？它的毛色真的能变成彩虹吗？”

    展览员哈哈大笑：“当然不是啦！我们给它这个名字是因为它是由不同品种的狗狗交配而成，所以它的毛色非常丰富多彩。”

    小明顿时恍然大悟：“原来它是‘狗狗版’的彩虹啊！”

    oneday，xiaomingandxiaohuaenttoapetdogexhibitiontheysaaparticularlycutedogintheshoroom，hichlookedveryuniqueithitscolorfulcoat

    xiaomingcouldn'thelpaskingtheexhibitor:“hatisthebreedofthisdog?hyisitsobeautiful?“

    theexhibitorrepliedithasmile:“thisisourlatestbreed，called'rainbodog'“

    afterhearingthis，xiaohuaaskedsuspiciously:“rainbodog?canitscoatcolorreallyturnintoarainbo?“

    theexhibitorlaughed:“ofcoursenot!egaveitthisnamebecauseitisacrossbreedofdifferentbreedsofdogs，soitscoatcolorisverycolorful“

    xiaomingsuddenlyrealized:“itturnsoutthatitisthe'dogversion'oftherainbo!“