【導(dǎo)讀】etotheparty.her?Nowlet’sread. thedialogue.Americanextmonth.somenicegifts.Whatarethey?stampfromAmerica.Whyisamathbooksad?Ifyoulookinmyface,Iamsomebody.Ifyoulookinmyback,Iamnobody.inonecorner?ForwardsI’mheavy.BackwardsI’mnot.WhatamI?Whathasfourlegs,butcan’twalk?