man·da·to·ry
adjective/ˈmændətəri/, /mænˈdeɪtəri/
/ˈmændətɔːri/
(formal)- required by law
依法的；按法律要求的 - The offence carries a mandatory life sentence.
这种罪行依照法律要判无期徒刑。 - mandatory (for somebody) (to do something) It is mandatory for blood banks to test all donated blood for the virus.
血库必须检查所有捐献的血是否含有这种病毒。
Oxford Collocations DictionaryMandatory is used with these nouns:- attendance
- embargo
- evacuation
- …
Word Originlate 15th cent.: from late Latin mandatorius, from Latin mandatum ‘something commanded’. - The offence carries a mandatory life sentence.