A prisoner must strictly observe laws, regulations, and rules and discipline of the prison, subject himself to control, accept education and take part in Labour.
罪犯必须严格遵守法律、法规和监规纪律，服从管理，接受教育，参加劳动。
2
I also gradually understand that we must be a maple leaver who observediscipline and work hard.
我也逐渐明白我们必须做一个有纪律、不怕苦的枫叶人。
3
Once a contract between Labour and capital is concluded, the workers must observe Labour discipline and the capitalists must be allowed to make some profit.