然而，一些学校管理层认为，很难分辨哪些是无知的玩笑和过失，哪些是严重的威胁，因此制度一定要严苛才能保护学生。
Still, some school administrators argue that it is difficult to distinguish innocent pranks and mistakes from more serious threats, and that the policies must be strict to protect students.
我最好的一本书应当是《无知管理》，但是很遗憾我没有写出来。
My best book would have been 'Managing Ignorance', and I’m very sorry I didn’t write it.
我最好的一本书应当是《无知管理》，但是很遗憾我没有写出来。
My best book would have been 'Managing Ignorance', and I'm very sorry I didn't write it.
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