what does the UK stand

what does the UK stand 翻译“What does the Uk stand of ,Katy” whaat does the uk stand for? what does the letter stand for? What does “@”on the Internet stand for? ____ does the UK feel like?是what还是how What does "cn"on the Intemet stand for? What does "cn"on the Internet stand tor(代表)? What does "cn" on the Internet stand for? What does "cn"on the Internet stand for的意思 What does "cn" on the Internrt stand for What does"WWW"on the Internet stand far?