A good litmus test is to rate your current sensitivity level on a scale of 1 to 10, 1 being the least sensitive.

一个好的试金石是用 1 到 10 的等级给你当前的敏感度等级打分，1 是最不敏感的。

These filters are great because users are often given control over the sensitivity level, but that's not true if you use one of the huge national ISPs such as AOL.

这些过滤器非常好，因为用户通常可以控制灵敏度水平，但如果使用美国在线（AOL）等大型国家互联网服务提供商之一，情况就不是这样了。