| 单词 | known quantity |
| 释义 | known quantity in American English an algebraic quantity whose value is given usually represented by an early letter of the alphabet, as a, b, or cknown quantity in American Englishnoun 1. Math a quantity whose value is given: in algebra, frequently represented by a letter from the first part of the alphabet, as a, b or c 2. any factor, circumstance, etc., that is already accepted or familiar Her honesty is a known quantity Word origin [1975–80]This word is first recorded in the period 1975–80. Other words that entered Englishat around the same time include: family therapy, gravitational lens, methanogen, surrogate mother, videotexExamples of 'known quantity' in a sentence |
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