英语翻译
Thesizeofpackagealsomotivatesabuyer.Maybethepackagehas"EconomySize"or"FamilySize"printedonit.Thissuggeststhatthelargesizehasthemostproductforthelestmoney.Butthatisnotalwaystrue.Tofindout,abuyerhastoknowhowtheproductissoldandthepriceofthebasicunit.