形容词
中文翻译：未知的
同义词：
['unidentified', 'unrecognized例句：1. The scientist is still trying to identify the cause of the disease.（科学家仍在试图确定这种疾病的原因。）2. He was unknown to everyone except for his closest friends.（除了他最亲密的朋友，他对所有人都不认识。）']
例句：
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1. The scientist is still trying to identify the cause of the disease.
科学家仍在试图确定这种疾病的原因。
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2. He was unknown to everyone except for his closest friends.
除了他最亲密的朋友，他对所有人都不认识。
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3.The team's performance was unknown until they won the championship.
直到他们赢得冠军，团队的表现还是未知的。