《论衡·卷十一·说日篇》
要是太阳和月亮合在一起相当于两块玉璧重迭，就是日全食了。
其合相当如袭者，日既是也。 
If the sun and the moon were combined together and were the equivalent of two jade discs lying one over the other, then that would be a total solar eclipse.
<s>[INST] Translate the following Classical Chinese text into modern Chinese: 其合相当如袭者，日既是也。  [/INST] 要是太阳和月亮合在一起相当于两块玉璧重迭，就是日全食了。</s>
Translate the following Classical Chinese text into modern Chinese: 其合相当如袭者，日既是也。
user
要是太阳和月亮合在一起相当于两块玉璧重迭，就是日全食了。
assistant