<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.the sekta ya uwezeshaji wa mauzo inakua kwa ukuaji, na kampuni zaidi na zaidi zikitambua kuwa kazi ya uuzaji imebadilika kidogo zaidi ya miaka.  <response>: the number of volunteers required continues to increase as the event becomes bigger and the variety of job roles has changed considerably compared to years gone by. 