Mandarin is dominated by Chengde sound, and the tongue rolling sound is not that heavy. Beijing dialect has a heavy tongue roll, and many words are voiced. For example: chicken (egg), gun (bullet), money, goldfish (goldfish), shredded pork (shredded pork) and so on.

There are a large number of Mongolian phonetics in Beijing dialect, which are actually composed of Mongolian phonetics+Manchu phonetics+Northeast Chinese+Hebei Chinese. The pronunciation is very different from that in the south.