unable to authenticate是什么意思

unabletoauthenticate无法验证authenticatev.证明为真；验证例句用作动词(v.)Theartdealerauthenticatedthepaintingasanoriginal.画商证实这幅画是真品。Thepaintinghasbeenauthenticatedbyexperts.专家已经验证过这幅画的真伪。