Mandarin is the national discourse, and the learning and training time of Putonghua test level is 1-2 months. It is useless to correct pronunciation, intonation and speaking organization on the original basis, and it takes a long time to receive training. Two days is too short to achieve the training effect correctly.

Putonghua is another name of modern standard Chinese, which is a common language with Beijing accent as the standard pronunciation, northern Mandarin as the basic dialect and typical modern vernacular as the grammatical norm.