• Photoperiodism The response of an organism to changes in day length.

    植物对于日照长度改变所引起反应

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  • Spring starts when the day and night are the same length.

    白天和黑夜一样长时,春天就开始了

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  • Autumn starts when the day and night are the same length again.

    白天和黑夜再次等长时,秋天就开始了

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  • Most animal behaviour is guided by the length of the day rather than temperature.

    大多数动物根据白天长短变化不是气温变化行动的。

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  • In everyday life, in order to level the length of the solar day basis.

    日常生活中太阳日长度为基础

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  • In everyday life, in order to level the length of the solar day basis.

    日常生活中太阳日长度为基础

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