1. Saving the public from cheats and criminals has been an effective excuse for cutting back everyone's personal privacy.
    保护公众不受欺骗和侵害一直是降低个人隐私程度的有效借口。

2. Just as many excellent instructors may not be effective online facilitators, not all students have the necessary qualities to perform well online.
    具备上述素质的人能够成为优秀的网络学生。

3. In so far as any inquiry is a secret one, it naturally limits all those engaged in carrying it out from effective contact with their fellow scientists either in other countries or in universities,
    任何一项研究都涉及到保密，那些从事科研的人员自然受到了限制。他们不能和其他国家、其他大学、