sub·stan·ti·ate /səbˈstænʃieɪt/ verb [transitiveT]formalPROVE to prove the truth of something that someone has said, claimed etc 證明,證實Katzen offered little evidence to substantiate his claims. 卡曾拿不出什麽證據來證明他的說法。
—substantiation /səbˌstænʃiˈeɪʃən/ noun [uncountableU]