I saw a news just now, New York is called "Big Apple",who can tell me why?tks!

i feel good to use the italki This is my second time to use the ltalki ,i feel it's good ,i can learn English on it , and even can know more languages. I made a friend yesterday , he comes from Turkey, he tought me some Turkish,like "merhaba" is"hello"in English ,so I am very happy ,i want to learn more and make more friends.

how to use italki to communicate with strange friends ? i ues this for frist time

First notebook entry: Introducing myself Hi ,everybody! I think i like English , but i can't learn it well by myself., i like lots of things all around the world,Espana is my favorite country，because i love Picasso and my favorite football palyer is Daivd.Villa.Sanchez,i like his family members,especially his daughter Zaida.more important,i like many strange and interesting stuff ,i want to konw more and more,so i want to improve my English ,can you help me ? Opposite ,maybe i cao help you to improve you Chinese,if you want.