Translation of diaphragm in Spanish

This is not so easy, my dear! Unless you have learned Latin, then Italian is not an easy language... I'm new here, I found the site through Google. How does it exactly work here? I want to sign up.
Can you speak English or Chinese? It would be easier to learn. I will correct you and you will help me, OK? From where in China are you? I know only Beijing and Shanghai, oh yes, and Hong Kong.
Absolutely no problem, do you speak English? I'll help you to learn it and you will like it. Your English is really very good, I understand all your lyrics, and please accept my friends request.