《旧五代史·后梁·列传十三》
河朔各州，一旦而被沦陷，师旅疲劳委顿，患难天天滋生，退守黄河，久无斗志。
河朔诸州，一旦沦没，劳师弊旅，患难日滋，退保河需，久无斗志。
Hebei Province was quickly lost, the troops were exhausted, and they suffered more and more hardships. They retreated to the Yellow River and had no fighting spirit for a long time.
<s>[INST] 将以下现代汉语文本转换为文言文: 河朔各州，一旦而被沦陷，师旅疲劳委顿，患难天天滋生，退守黄河，久无斗志。 [/INST] 河朔诸州，一旦沦没，劳师弊旅，患难日滋，退保河需，久无斗志。</s>
将以下现代汉语文本转换为文言文: 河朔各州，一旦而被沦陷，师旅疲劳委顿，患难天天滋生，退守黄河，久无斗志。
user
河朔诸州，一旦沦没，劳师弊旅，患难日滋，退保河需，久无斗志。
assistant