简介:小T是一个梯形,它有时正着走路,像一个金字塔的底座;有时倒立过来,像护士头顶上一的小白帽。它总是变来变去,有时,它的两腰一样长,或者一边长一边短;有时,它的其中一条边和上一下两条边成一直角。不过,它怎么变也是上一下底平行的,怎么变也是梯形嘛。
简介:<正>Amalecrabmetafemalecrabandaskedhertomarryhim.Shenoticedthathewaswalkingstraightinsteadofsideways."Wow,"shethought,"thiscrabisreallyspecial.Ican’tlethimgetaway."Sotheygotmarriedimmediately.Thenextdayshenoticedhernewhusbandwalkingsidewayslikealltheothercrabs,andgotupset."Whathappened?"sheasked,"Youusedtowalkstraightbeforeweweremarried."