teacher
Teacher: It was originally a title for local primary school teachers in the Song and Yuan Dynasties, and later it specifically referred to students' honorifics for teachers.
sir
Since the Ming and Qing Dynasties, teachers have generally been called "Mr.". It was not until the end of 19 and the beginning of the 20th century that He Ziyuan and Qiu, veterans of the Revolution of 1911 and founders of modern education in China, introduced western learning (American education) into China and established new schools, and they clearly defined the title of "teacher" as "teacher" in the Code of Conduct for Students.
teacher
Most students changed the title of "Mr" to "teacher" from the era of the National Government, and it has been used ever since.
Shi, bin
Shi Hebin: When Emperor Gaozu Liu Zhuang was a prince, he worshipped Huanrong as his teacher. After he acceded to the throne, he still respected Huan Rong very much. He often goes to Taichang House where Huanrong lives to listen to Huanrong's lectures. Sitting on the floor in the Han dynasty, sitting indoors is by the west wall (west) and facing east. Emperor Hanming arranged for Huan Rong to sit in the southwest seat, showing respect for the first teacher, and "teacher" became a respectful name for the teacher.
grasp
Master: In ancient times, master was called "master", and now some people call their own teachers "master".