官方

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

网址

wǎng zhǐ website; web address; URL

：cc55net 竞

jìng to compete; to contend; to struggle

彩

cǎi (bright) color; variety; applause; applaud; lottery prize

app 排行榜

pái háng bǎng the charts (of best-sellers); table of ranking