| 单词 | unknown |
| 释义 | unknown /un nohn"/, adj. 1. not known; not within the range of one's knowledge, experience, or understanding; strange; unfamiliar. 2. not discovered, explored, identified, or ascertained: the unknown parts of Antarctica. 3. not widely known; not famous; obscure: an unknown writer. n. 4. a thing, influence, area, factor, or person that is unknown: the many unknowns in modern medicine; The director cast an unknown in the leading role. 5. Math. a symbol representing an unknown quantity: in algebra, analysis, etc., frequently represented by a letter from the last part of the alphabet, as x, y, or z. [1250-1300; ME unknow(e) n. See UN-1, KNOWN] |
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