failvi.失败；没做成某事；表现欠佳；用完；衰退vt.辜负；放弃；缺少；不及格n.不及格；没做成failsafevi.自动防止故障；故障保险n.故障保险

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   魔岛互联网安全的所有功能于一身的安全软件，让您的电脑完全安全免受病毒和网络威胁。