corroboration

名词 corroboration:

1. confirmation that some fact or statement is true
   同义词：documentation, certification

1. His possession of the gun is corroboration of his guilt.
   他藏有枪是他犯罪的又一证据。
2. In corroboration of his story (ie to give support to it) he produced a signed statement from his employer.
   为了进一步证明他所说的是事实，他出示了一份雇主签了字的文件。