1. "Du", a standard first class word (commonly used word) in modern Chinese, is pronounced d ù and du ó in Mandarin, which was first seen in the era of oracle bone inscriptions and belongs to pictophonetic characters in the Six Books.
2. The basic meaning of "degree" is an instrument or unit for calculating length, such as scale and scale; The extended meaning refers to the state reached by things, such as degree and height.
3. In daily use, "degree" is often used as a noun to indicate legal system and law, such as degree track.
