1. necessary
Anglais américain mot "konieczny"(necessary) se produit dans des ensembles:
PER-A88 01.022. essential
A balanced diet is essential for good health.
Anglais américain mot "konieczny"(essential) se produit dans des ensembles:
Wordlist page 893. requisite
The person responsible for the feeding and handling of animals shall possess the requisite ability, knowledge and competence.
The party failed to obtain the requisite majority to form a government. / Training can be provided for those who lack the requisite experience.
4. obligate