他们知道在闰年的时候，他们能够有“多一天”来提高他们的总产量。

They know that in a leap year, they have "one more day" to improve their overall results.

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在闰年的时候，日期会跳过一周中的某一天。

In a leap year, the dates jump over one day of the week.

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他们知道在闰年的时候，他们能够有“富余的一天”来提高他们的总产量。

They know that in a leap year, they have “one more day” to improve their overall results.

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