[视频作者] Oscar-Mervin_陈辰尘
[视频时长] 9:13
[视频类型] 科学探索
https://www.youtube.com/watch?v=-UDosHUqPTM Fair use is a doctrine of U.S. copyright law. It outlines the legal boundaries of utilizing copyrighted material without the copyright holder's permission. Especially if it is for educational purposes.