形容词
中文翻译：Unknown
同义词：
['pure', 'unpolluted', 'untainted']
例句：
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1. The water in this area is uncontaminated by industrial runoff.
这个地区的水没有被工业排放物污染。
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2. The food was uncontaminated, which made it safe for consumption.
食物没有受到污染，因此是安全的可以食用。
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3. The scientists found evidence of uncontaminated air in the region.
科学家们发现了该地区空气未受污染的证据。