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 thesource 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 couldn't be matchedwith any known criminals.
指纹无法识别，因此不能与已知罪犯匹配。
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3. Thepolice were unable to identify the culprit behind the murder.
警方无法确定谋杀案的嫌疑人。