substantiate

v. /səbˈstænʃieɪt/ C2

证实；证明

To provide facts or evidence to prove something is true.

仙境例句

The Queen shouted a great deal, but she could not substantiate a single word against the Knave.

王后嚷了半天，却拿不出一点证据证实她说红桃杰克的话。