a.
- 不知道的；未知的；陌生的；默默无闻的[（+to）]
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We bought a drawing by an
unknown artist.
我们买了一幅某个不出名的画家所作的画。
n.
- 默默无闻的人；未知的事物[C][the S]
- 【数】未知数
辨析
adj.
not known or familiar.
n.
an unknown person or thing.
▸Mathematics an unknown quantity or variable.
Phrase
- unknown to
without the knowledge of.
Derivative
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