/ˌfɜ:st ˈhænd ||; ˈfɝst ˈhænd/adj adv(used about information, experience, a story, etc) heard, seen or learnt by yourself, not from other people （指资料、经历、报道等）第一手的，亲身耳闻目睹的: He gave me a first-hand account of the accident (= he had seen it). 他告诉我他所目睹的事故发生经过。I've experienced the problem first-hand, so I know how you feel. 我经历过这个难题，所以我明白你的感受。