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Unverified50% confidenceFactExact time

合理使用(fair use)是美国版权法中允许在未经版权持有人许可的情况下,出于评论、新闻报道、教学、研究等目的对受版权保护作品进行有限使用的原则

1
Sources
50%
Confidence
Long-term
Relevance
8/22/2026
First Seen

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