资料来源 : pyDict

证明,证据,证言

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Attestation \At`tes*ta"tion\, n. [L. attestatio: cf. F.
   attestation.]
   The act of attesting; testimony; witness; a solemn or
   official declaration, verbal or written, in support of a
   fact; evidence. The truth appears from the attestation of
   witnesses, or of the proper officer. The subscription of a
   name to a writing as a witness, is an attestation.

资料来源 : WordNet®

attestation
     n 1: noun.group:law,;c the action of bearing witness
     2: the evidence by which something is attested