名词
中文翻译：持续性
同义词：
['duration', 'permanence']
例句：
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1.The rain was so persistent that it lasted for several hours.
雨持续了几个小时。
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2.The company's success is due to its long-standing commitment to quality.
该公司的成功归功于其对质量的长期承诺。
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3.The patient's instancy to recovery was a cause for concern.
病人恢复的持续性令人担忧。