nines
名词 C2中文： 一对九、纯度等级
- A pair of nines. · He drew nines from the deck.
- Degree of purity. · Three nines or 3N is 99.9%.
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“Those are really aces and twos which you see, but my shots have turned them into threes, fives, sevens, eights, nines, and tens.”
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