Yu (Pinyin: yú) is a first-class Chinese character (commonly used) and a common Chinese standard. . This word first appeared in the Warring States script? . Another scholar thinks that this word has already appeared in Oracle Bone Inscriptions, and its glyph is like a four-handed sedan chair, and its original meaning refers to lifting and lifting. Refers to the carriage, extended to the car, extended to the sedan chair, extended to the carriage. The earth is like a car, carrying all beings, thus metonymizing the territory and the earth. The word Yu is like a four-handed sedan chair, which is extended to all people.