必

bì certainly; must; will; necessarily

威

wēi power; might; prestige

官方

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

app 下载

xià zǎi to download; also pr. [xia4 zai4]

维基百科

Wéi jī bǎi kē Wikipedia (online encyclopedia)

Wéi jī Bǎi kē Wikipedia (online encyclopedia)

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