Synset:nonmandatory
Antonyms:obligatory
Inherited Hypernyms:nonmandatory
Similar to:optional
单词 | nonobligatory |
释义 | Nonobligatory adj satadj.allnot required by rule or law Synset:nonmandatory Antonyms:obligatory Inherited Hypernyms:nonmandatory Similar to:optional |
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