it means "can you speak mandarin chinese?" mandarin is the official language of china. characters: 你会不会说普通话?

Putonghua=Mandarin(Chinese language),its official language in China,There are many different dialects in China,so we should use Putonghua to communicate with others from different place

to mark of chinese langurage.

Literal translation is : You can ,you can't speak Chinese Mandarin ? which means " Do you speak Chinese Mandarin?"

haha well done :)