To be on guard the service is destroyed, the user is OK from prevent exterior attack, prevent interior attack and prevent to relay attack tripartite face considers.

对于防范服务破坏，用户可以从防止外部攻击、防止内部攻击以及防止中继攻击三方面考虑。

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Then our advancing troops will sometime continue forward to attack their interior, other times their exterior. With our army all fervently engaging in battle, the enemy shall certainly be defeated.

我军反复不停的扰乱，或袭击他的内部，或打击他的外部，然后，全军疾速投入战斗，敌人就一定会被打败了。

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