甲：人们把在某一领域有独到研究的人称为专家.

　　A:Peopleputinauniquefieldofstudycalledexperts.

　　乙：那是,韩愈说得好：“术业有专攻”.B:Thatis,HanYu'srightwhenhesaid:"surgeryindustrytospecialize."

　　甲：其实我也是专家.A:Actually,Iwasanexpert.

　　乙：那您是哪方面的专家?B:Thatyouareanexpertonwhat?

　　甲：我是研究砖的.A:Istudythebricks.

　　乙：研究砖?B:TheBrick?

　　甲：按砖的用料,可分为土砖、瓷砖、水泥砖、矿渣砖；按颜色,可分为青砖、红砖；按用途,可分为地板砖、行道砖、墙面砖；按结构可分为实心砖、空心砖；按形状,可分为方砖、异型砖；用来打门的叫敲门砖……A:Accordingtotilematerialscanbedividedintoadobebricks,tiles,cement,brick,slag,brick;bycolor,canbedividedintobrick,redbrick;accordingtouse,canbedividedintofloortile,apavementbrick,walltiles;accordingtothestructurecanbedividedintosolidbrick,hollowbrick;accordingtoshape,canbedividedintosquaresare,shapedtiles;usedtoshootatthedoorcalledstepping-stone......