sense of duty (obligation)
compulsory; obligatory; mandatory
making obligatory; making compulsory
to place an obligation; to impose a duty; to obligate
compulsory military service
duty to support (a person)
① ある行為をする際に一定の注意を払わなければならない義務。
The Three Major Duties (education, work and payment of taxes)
obligation of restitution
compulsory school attendance
carbon dioxide reducing obligation