First of all, it should be emphasized that Mongolian, like many languages, has many dialects. Mongolia is 80% Khalkha Mongolians, so the Mandarin of Mongolia is Khalkha Mongolians. On this basis, I borrowed a lot of Russian and English words. The situation in Inner Mongolia is much more complicated, and there is a great difference between eastern and western accents. Ordos in the west speaks very fast, while Horqin in the east borrows more Chinese words, and each dialect has its own characteristics. People in the east often don't understand the dialects in the midwest.