<prompt> Translate the following text to Swahili10 11 In some classes, mailers transport much of their mail to downstream locations to take advantage of zoned rates for transportation.  <response>: 11 Katika baadhi ya makundi, wauzaji wa barua husafirisha barua zao nyingi hadi maeneo ya chini ya mto ili kutumia faida ya viwango vya usafirishaji vya mikoa. 