《百战奇略·第八卷·气战》
因此，作战中必须度量敌人进至距我六七十步以内，才可以击鼓，命令士兵奋勇进战。
须度敌人之至六七十步之内，乃可以鼓，令士卒进战。
Therefore, during combat, it is necessary to gauge when the enemy is sixty to seventy paces away before you can beat the drum and order the soldiers to fight bravely.
<s>[INST] Convert the following English text into Classical Chinese: Therefore, during combat, it is necessary to gauge when the enemy is sixty to seventy paces away before you can beat the drum and order the soldiers to fight bravely. [/INST] 须度敌人之至六七十步之内，乃可以鼓，令士卒进战。</s>
Convert the following English text into Classical Chinese: Therefore, during combat, it is necessary to gauge when the enemy is sixty to seventy paces away before you can beat the drum and order the soldiers to fight bravely.
user
须度敌人之至六七十步之内，乃可以鼓，令士卒进战。
assistant