《后汉书·列传·方术列传上》
并问 ：你怎么知道的？ 
问何以知之。
And asked: "How did you know?"
<s>[INST] First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 问何以知之。 [/INST] 并问 ：你怎么知道的？  Then, And asked: "How did you know?"</s>
First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 问何以知之。
user
并问 ：你怎么知道的？  Then, And asked: "How did you know?"
assistant