ac123·net 买

mǎi to buy; to purchase

球

qiú ball; sphere; globe; CL:個|个[ge4]; ball game; match; CL:場|场[chang3]

怎么

zěn me how?; what?; why?

zěn me variant of 怎麼|怎么[zen3 me5]

买

mǎi to buy; to purchase

平台

píng tái platform; terrace; flat-roofed building

介绍

jiè shào to introduce (sb to sb); to give a presentation; to present (sb for a job etc); introduction