谁能帮我解释一下AD给我的邮件意思

九霄云外

Your ad zone is currently not set to show network ads, hence why no ads are appearing on your site.  If you would like to turn your network ads back on, go to:
My Account -> Manage your Zones -> Edit Zone Preferences -> Ad Specs


请帮我解释：
My Account -> Manage your Zones -> Edit Zone Preferences -> Ad Specs
这一步要设置什么，怎么设置，谢谢。

九霄云外

原来这样，谢谢。