Teachers, please help me to rewrite this sentence:
Sam speaks Chinese fluently and Japanese is good too. ->Not…
Thank you very much.
Oh, I am sorry to have written it incorrectly. Yes, you are right. It must be read:
“Sam speaks Chinese fluently, and his Japanese is good too.”
But I mean you rewrite the sentence beginning by “Not” without changing the meaning of it.
Thank you Cerberus.
Oh, now I understand.
- Not only does Sam speak Chinese fluently, but his Japanese is good too. [corrected]
It seems you typed it incorrectly. 
Do you mean :
Not only does SAM speak Chinese fluently, but his Japanese is good too.
Anyway, thank you.
Ah, my apologies! I have corrected my previous post.
I’ll give it a go…
Not only Sam speaks Chinese fluently ,but his Japanese is good too/as well.
or
Not only Sam speaks Chinese fluently, but also his Japanese is good.
Thank Ben, Thank Cerberus.