| 1. | This calendar was in use up to 1582 .
该历一直使用到1582年。
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| 2. | The sidereal year is not used to construct a calendar .
恒星年不用于编制年历。
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| 3. | One use for early astronomy was to create calendars .
早期天文学的用途之一是建立历法。
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| 4. | Our weather must not always be judged by the calendar .
我们的季节不能总是靠日历来衡量。
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| 5. | And it was he, without doubt, who scratched a calendar on this stone .
无疑，把日历刻在这石头上的也是他。
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| 6. | To keep track of the time, she marked off the days on her calendar .
为了记日子，她每天都在日历上做记号。
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| 7. | In the lunar calendar , the years are designated by the heavenly stems and earthly branches .
阴历用干支纪年。
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| 8. | This part of geologic calendar has not been satisfactorily subdivided .
这部分地质年代表还没有令人满意地再细分出来。
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| 9. | According to the lunar calendar , the autumn harvest moon is exceptionally bright .
按阴历算，秋收季节里的月光格外明亮。
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| 10. | Astronomy served many purposes. for one thing, it was needed to keep a calendar .
天文学有许多用处，其一是要用它来算出历书。
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