形容词
中文翻译：持续的
同义词：
['enduring', 'lasting', 'persistent']
例句：
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1.The persistent rain made the streets muddy.
持续的雨使街道变得泥泞。
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2.She persisted in her belief that the world would be a better place.
她坚持认为世界会变得更美好。
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3. Despite his persistent efforts, he couldn't solve the problem.
尽管他坚持不懈，但问题依然无法解决。