形容词
中文翻译：未识别的
同义词：
['unknown', 'unrecognized']
例句：
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1.The scientist was unable to identify the source of the virus.
科学家无法确定病毒的来源。
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2.The fingerprints were unidentified, so they could not be matched with any known criminal.
指纹无法识别，因此无法与已知罪犯匹配。
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3. The team was unable to identify the culprit behind the robbery.
团队无法确定抢劫背后的罪犯。