动词
中文翻译：不改变
同义词：
['unchangeable', 'unaltered', 'untainted']
例句：
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1. The metal was unregenerate after being exposed to the elements for a long time.
金属在长时间暴露于元素后变得不再坚固。
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2. The old painting was unregenerate and still held its original colors.
这幅旧画仍然保持着原始的色彩，未被腐蚀。
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3. The wine was unregenerate and had a rich, complex flavor.
这瓶酒未受污染，味道丰富而复杂。