《明史·列传·卷六十六》
这时，寇占据河套，连年派遣大军征讨，没有什么实际效果。
是时，寇据河套，岁发大军征讨，卒无功。
At that time, Kou occupied Hetao and sent large armies to attack every year, but failed to achieve significant results.
<s>[INST] Convert the following English text into Classical Chinese: At that time, Kou occupied Hetao and sent large armies to attack every year, but failed to achieve significant results. [/INST] 是时，寇据河套，岁发大军征讨，卒无功。</s>
Convert the following English text into Classical Chinese: At that time, Kou occupied Hetao and sent large armies to attack every year, but failed to achieve significant results.
user
是时，寇据河套，岁发大军征讨，卒无功。
assistant