正规

zhèng guī regular; according to standards

买

mǎi to buy; to purchase

球

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

app 排行

pái háng to rank; ranking; seniority (among siblings)

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

打开

dǎ kāi to open; to show (a ticket); to turn on; to switch on

：bb77net