《资治通鉴·晋纪·晋纪二十二》
所以凉国的两位先王向赵国称臣，这是识时务的。
是以凉之先王北面二赵，唯知机也。
Therefore, the two previous kings of Liang submitted to the state of Zhao, which showed that they knew how to adapt to the times.
<s>[INST] Convert the following English text into Classical Chinese: Therefore, the two previous kings of Liang submitted to the state of Zhao, which showed that they knew how to adapt to the times. [/INST] 是以凉之先王北面二赵，唯知机也。</s>
Convert the following English text into Classical Chinese: Therefore, the two previous kings of Liang submitted to the state of Zhao, which showed that they knew how to adapt to the times.
user
是以凉之先王北面二赵，唯知机也。
assistant