In order to secure active networks, we need two basic services: authentication and authorization.
为了保障主动网络安全，我们需要两个基本服务，即认证和授权。
Older people can learn, and they should in order to keep their brains active.
年长的人“能够”学习，也应该学习，才能保持头脑灵活。
So they must be more alert and active in order to be more successful.
所以，为了更加成功，他们必须更加警惕，更加活跃。
So they must be more alert and active in order to be more successful.
所以，为了更加成功，他们必须更加警惕，更加活跃。
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