In fact, the only difference is the principal statement, which states that only subjects (users) that have the specified principal and principal name are granted the specified permissions.

实际上，唯一的不同是主体语句，该语句声明只有拥有指定主体和主体名字的subject(用户)被授予指定的许可权。

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Instead, high school principal Gregg Errebo issued a written statement defending the project as a valuable lesson in hands-on learning.

相反，高中校长格雷格埃雷波发表了书面声明，为项目辩护说这是一个动手学习，非常有价值的教学课。

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Other information about the authentication method used by the principal (called the authentication context) may be enclosed into an authentication statement.

关于主体(所谓的验证上下文)使用的其他验证方法的其他信息可以被封装在验证语句中。

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