| 单词 | normal |
| 释义 | normal adj. & n. --adj 1. conforming to a standard; regular, usual, typical. 2. free from mental or emotional disorder. 3. Geom. (of a line) at right angles, perpendicular. 4. Chem. (of a solution) containing one gram-equivalent of solute per litre. --n 1. a the normal value of a temperature etc., esp. blood-heat. b the usual state, level, etc. 2. Geom. a line at right angles. Phrases and idioms normal distribution Statistics a function that represents the distribution of many random variables as a symmetrical bell-shaped graph. normal school (in the US, France, etc.) a school or college for training teachers. Derivatives normalcy n. esp. US. normality n. Etymology: F normal or L normalis (as NORM) |
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