in fact, i want to say

My best friend, the my best partner, next month will leave china, and immigrants immigrate to Australia.
I have known for a year a year ago to know, I helped her with her visa i have to help deal with the visa, I'm happy she found her happiness.

But I don't want her to be sad but I am not willing her ,sad.

I hope she is happy 'down under'.  but it is hoped her happiness down.

You are in au Australia, I am was in China, there is a dream, with our brands will be successful!

we will dream of having successful lives. [Sorry, I am guessing what you mean!]

My god, now i want to cry .

i just hope we do not change.

So sad! I am sorry she is leaving! You will write to each other, I'm sure.