名词
中文翻译：持久性
同义词：
['persistency', 'constancy例句：1. The constancy of the stars in the night sky is truly awe-inspiring.（夜空中恒星的恒常性令人敬畏。）']
例句：
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1. The constancy of the stars in the night sky is truly awe-inspiring.
夜空中恒星的恒常性令人敬畏。
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2. The constancy of nature's beauty never fails to astound me.
自然界的美丽恒常性从未让我失望。
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3. The constancy of his love for her was unwavering.
他对她的爱恒常不变。