《晋书·志·第七章》
杨伟认为： 在六十天之内，历法的粗疏精密就可知道，用不着等十年。
杨伟请： 六十日中疏密可知，不待十年。
Yang Wei thinks: within sixty days it is possible to know if the calendar is thorough or precise, it is not necessary to wait ten years.
<s>[INST] Translate the following Classical Chinese text into English: 杨伟请： 六十日中疏密可知，不待十年。 [/INST] Yang Wei thinks: within sixty days it is possible to know if the calendar is thorough or precise, it is not necessary to wait ten years.</s>
Translate the following Classical Chinese text into English: 杨伟请： 六十日中疏密可知，不待十年。
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Yang Wei thinks: within sixty days it is possible to know if the calendar is thorough or precise, it is not necessary to wait ten years.
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