의무적 인 用英语:

A cooking course should be mandatory in schools.

The mandatory character of schooling is rarely analyzed in the multitude of works dedicated to the study of the various ways to develop within children the desire to learn.

The mandatory audit rules for small companies have been abolished; the rules are now voluntary.

It's mandatory for cyclist to wear helmets.

The definition of mandatory is something that is required.

Military service is mandatory for all men over the age of 20 in Turkey except the ill, disabled or homosexual ones. / Following lobbying by Ms. Merkel, the EU Commission announced it wanted 160,000 refugees distributed around Europe by mandatory quotas.

Things should not be forced upon you........ made mandatory........

By a mandate contract, the mandatory obliges himself to perform a specified legal act for the mandator.

mandatory evacuation

attending school is mandatory until the age of 16

It should be clear that the curriculum reform is mandatory in order to enhance interdisciplinary research.

Age discrimination is illegal and retirement is mandatory in only a few occupations.