《辽史·本纪·卷二》
有紫黑之气遮蔽天空，过了一整天才散去。
有紫黑气蔽天，逾日乃散。
Purple and black qi shrouded the sky, and it only dissipated after a whole day.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 有紫黑气蔽天，逾日乃散。 [/INST] Purple and black qi shrouded the sky, and it only dissipated after a whole day.</s>
Explain the meaning of this Classical Chinese passage in English: 有紫黑气蔽天，逾日乃散。
user
Purple and black qi shrouded the sky, and it only dissipated after a whole day.
assistant