Allegations made by prisoners are usually only considered when substantiated by the evidence of a prison officer.囚犯的指控通常只有在经监狱官证实的情况下才会被考虑。This theory cannot be said to have been substantiated.这一理论不能说是已经得到充分的证实。Earlier reports of gunshots have not been substantiated.早先有关枪击的那些报道尚未得到证实。Reports that children had been hurt have not been substantiated.有关儿童受到伤害的报道并未得到证实。