《史记·七十列传·大宛列传》
攻下城来才能得到饮食，攻不下来来，几天内就得离开那里。
下者得食，不下者数日则去。
Only by capturing the city can food be obtained; if it is not captured, it will have to leave within a few days.
<s>[INST] Convert the following modern Chinese text into Classical Chinese: 攻下城来才能得到饮食，攻不下来来，几天内就得离开那里。 [/INST] 下者得食，不下者数日则去。</s>
Convert the following modern Chinese text into Classical Chinese: 攻下城来才能得到饮食，攻不下来来，几天内就得离开那里。
user
下者得食，不下者数日则去。
assistant