| 单词 | unfastens | 
| 释义 | unfastenverb  un·fas·ten  ˌən-ˈfa-sᵊn    unfastened; unfastening; unfastens   transitive verb   : to make loose: such as    a    : unpin, unbuckle    b    : undo  unfasten a button  c    : detach  unfasten a boat from its moorings unfastens verbas in untiesto disengage the knotted parts of gently unfastened the strings of the baby's hood Synonyms & Similar Words Relevance 
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