充当策略强制点，以抵御未经授权的访问。

Acting as a Policy Enforcement Point, to protect against unauthorized access.

youdao

除此以外，还有授权第三人和半强制性规范。

In addition, there are singular third party and semi-mandatory norms.

youdao

除此以外，还有授权第三人和半强制性规范。

In addition, there are singular third party and semi-mandatory norms.

youdao