"a known quantity" "the limits of the known world" "a musician known throughout the world" "a known criminal"
Billy Kellett?..He's known to the police.
I was leaving surroundings where I had become known and was accepted.
His face was not recognised in the rogues' gallery, nor did his description tally with any known criminal.
There are 700 known species of holly in the world.
牛津高階第八版
美國韋氏詞典
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