ag 正规

zhèng guī regular; according to standards

平台

píng tái platform; terrace; flat-roofed building

有

yǒu to have; there is; there are; to exist; to be

哪些

nǎ xiē which ones?; who?; what?

维基百科

Wéi jī bǎi kē Wikipedia (online encyclopedia)

Wéi jī Bǎi kē Wikipedia (online encyclopedia)

官方

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

网址

wǎng zhǐ website; web address; URL

：cc55net