substantiate /səbˈstænʃiˌeɪt/ verb substantiates; substantiated; substantiating
substantiates; substantiated; substantiating
Learner's definition of SUBSTANTIATE
[+ object] formal
: to prove the truth of (something)证明;证实 — substantiation
/səbˌstænʃiˈeɪʃən/ noun [noncount]