translation... anyone know Mandarin?

[Yumiko]

i want to understand this song!!! someone who knows mandarin help me?? or does anyone have the actual chinese lyrics?? this is what i can understand of the first verse and the chorus. someone fill in the lines that have (??) for me please??

Aaron Kwok – Me come back

When you are not happy
Remember to write a letter to me
I don’t understand (??)
Remember baby

When you miss me
Don’t be upset and sad
Find a friend and go out somewhere

The next morning, when you wake up
And I’m not here
Please put carefully put away my love
Wait for me to return

chorus

I can’t say to you ‘goodbye’
I am afraid I cannot leave you behind
I don’t understand (??)
I don’t understand (??)
These few days
I don’t understand (??)
You being by my side
Is such a good feeling

I can’t say to you ‘goodbye’
Tears will fall
I can’t sing out the love (??)
I wish you could understand
I’m not willing
Oh my love
You are waiting,
I’m waiting too
Wait for me to return