官方

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

网址

wǎng zhǐ website; web address; URL

：cc55net 靠谱

kào pǔ reliable; reasonable; probable

电子

diàn zǐ electronic; electron (particle physics)

游艺

yóu yì entertainment

注册

zhù cè to register; to enroll

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