《淮南子·天文训》
将东西两极的距离加起来，也就是大地东极到西极的距离了。
并之，东西里数也，则极径也。
Add up the distances between the east and west poles, which is the distance between the east and west poles of the earth.
<s>[INST] Translate the given Classical Chinese text into modern Chinese, then provide an English translation that captures the nuances of both versions. Classical Chinese: 并之，东西里数也，则极径也。 [/INST] Modern Chinese: 将东西两极的距离加起来，也就是大地东极到西极的距离了。 English Translation: Add up the distances between the east and west poles, which is the distance between the east and west poles of the earth.</s>
Translate the given Classical Chinese text into modern Chinese, then provide an English translation that captures the nuances of both versions. Classical Chinese: 并之，东西里数也，则极径也。
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Modern Chinese: 将东西两极的距离加起来，也就是大地东极到西极的距离了。 English Translation: Add up the distances between the east and west poles, which is the distance between the east and west poles of the earth.
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