Tomake changed to your Reverse DNS PTR records, you must contact thecompany where you get your IP addresses from, usually a hostingfacility or an ISP.是什么意思_Tomake changed to your Reverse DNS PTR records, you must contact thecompany where you get your IP addresses from, usually a hostingfacility or an ISP.在线翻译_英语_读音_用法_例句