《魏书·列传·卷二十九》
如今北边有强劲的敌寇经常骚扰，南边有狡诈的贼人负隅捣乱，那里的边疆战场，还须严加防备戍守。
今劲寇游魂于北，狡贼负险于南，其在疆场，犹须防戍。
In the North there are strong enemies who frequently harass us, and in the South there are cunning bandits who cause chaos by ambushing; at the battlefields there, we must continue to strictly defend and guard. 
<s>[INST] Rewrite the following English passage in the style of Classical Chinese: In the North there are strong enemies who frequently harass us, and in the South there are cunning bandits who cause chaos by ambushing; at the battlefields there, we must continue to strictly defend and guard.  [/INST] 今劲寇游魂于北，狡贼负险于南，其在疆场，犹须防戍。</s>
Rewrite the following English passage in the style of Classical Chinese: In the North there are strong enemies who frequently harass us, and in the South there are cunning bandits who cause chaos by ambushing; at the battlefields there, we must continue to strictly defend and guard.
user
今劲寇游魂于北，狡贼负险于南，其在疆场，犹须防戍。
assistant