《战国策·齐六·田单将攻狄》
攻打狄地却不能攻克，为什么？ 
攻狄而不下，何也? 
Attacking Di and I cannot conquer it, why is that?
<s>[INST] Kindly elucidate the central themes in this passage in English: 攻狄而不下，何也?  [/INST] Attacking Di and I cannot conquer it, why is that?</s>
Kindly elucidate the central themes in this passage in English: 攻狄而不下，何也?
user
Attacking Di and I cannot conquer it, why is that?
assistant