Labor class is a song about labor. Labor songs are sung by singer Guo, which are used to stimulate and inspire workers' enthusiasm for production in the process of productive labor. Lyrics of labor class: lyrics: net man, accompaniment: easily injured woman. At that time, I was still a primary school student. I went up the mountain every week and went to the farm in the mountains. The farm work is endless, and the labor class is held once a week.