原创可写为:Myclassmate
IhaveaclassmatenamedJim.Jimismyclassmateandheisalsomygoodpartner.Heistallerthanme,andIamshorterthanhim.ButIamthinnerthanhim,heisjustlikeafattywhoismuchheavierthanme.Andwebothdowellinstudies,andhisEnglishisbetterthanmebutmymathsisbetterthanhim.Sothisismyclassmate,Jim,howaboutyours?Wouldyoumindshowinghim/hertome?