| 正面 | 12917.minus 英 ['maɪnəs]美 ['maɪnəs]     |
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| 背面 |      释义： 1. min- + us (我们) => 使我们小了一点。prep. 减，减去n. 负号，减号；不足；负数adj. 减的；负的n. (Minus)人名；(英)米纳斯 例句： 1. The star's surface temperature is reckoned to be minus 75 degrees Celsius.这颗恒星的表面温度估计在零下75摄氏度左右。 minus 减号，负值来自拉丁语minus,较小的，较少的，来自minor的中性格，词源同minute,minimum.后引申词义减号，负值。 minus (prep.)late 15c., "with subtraction of," from Latin minus "less," neuter of minor "smaller," from PIE *mi-nu-, suffixed form of root *mei- (2) "small" (cognates: Latin minuere "to diminish, reduce, lessen," Greek meion "less, smaller," Old English minsian "to diminish," Sanskrit miyate "diminishes, declines," Russian men'she "less"). Mathematical use in expressions of calculation did not exist in the word in classical Latin and is probably from North Sea medieval commercial usage of Latin plus and minus to indicate surplus or deficiency of weight or measure. Origin of the "minus sign" is disputed.minus (n.)1650s, from minus (prep.)." |