substantiate

动词 substantiate:

1. establish or strengthen as with new evidence or facts
   同义词：confirm, corroborate, sustain, support, affirm
2. represent in bodily form
   同义词：incarnate, body forth, embody
3. make real or concrete; give reality or substance to
   同义词：realize, realise, actualize, actualise
4. solidify, firm, or strengthen

1. Can you substantiateyour accusations against him?
   你指责他，能提出事实根据吗?