每個虛構詞都對應到特定的物體。使用這類稱為「偽詞」（pseudowords）的方式，能讓研究者公平比較學習成果，因為學生無法依靠任何既有知識。
PRF is already implemented in WebAuthn Clients and Credential Managers, so the cat is out of the bag. My asks:。快连下载-Letsvpn下载对此有专业解读
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He identified creating a hand as one of the three most difficult problems facing makers of humanoid robotics. The other two were creating an artificial intelligence that allowed the robot to comprehend the world, and making robots in large numbers.