corroborated [kəˈrɔbəˌreɪtid]

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附加级

v.证实，支持（某种说法、信仰、理论等）( corroborate的过去式 )

The evidence was corroborated by two independent witnesses. 此证据由两名独立证人提供。
Experiments have corroborated her predictions. 实验证实了她的预言。来自《简明英汉词典》