张东健的Back To the Books分集介绍:Thereisalittleboyandalittlegirlinthewoods.Thelittlegirlaskedtheboy,"Whatisapenis?"Theboyreplied,"Idon`tknow."Atthattimehehearshismomcallinghimforlunch.Hegoeshomeandeatshislunch.Thenheseeshisdadonthecouch.Hegoesuptohisdadandaskhim,"Whatisapenis?"Thedadwhipshisoutandsaystotheboy,"Thisisapenis,asamatteroffactthisistheperfectpenis."Theboyleavestogofindhisfriendandbringshertothewoods.Thegirlagainaskshimwhatapenisis.Hewhipsouthispenisandsaystoher,"Thisisapenis,andifitwastwoinchessmalleritwouldbetheperfectpenis!"[