官方

guān fāng government; official (approved or issued by an authority)

网址

wǎng zhǐ website; web address; URL

：jj11net 买

mǎi to buy; to purchase

球网

qiú wǎng net (for ball games)

站

zhàn station; to stand; to halt; to stop; branch of a company or organization; website

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