词典释义：
the great size or extent of something
巨大，广大，庞大
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they may feel discouraged at the magnitude of the task before them .面对如此巨大的任务，他们可能会感到气馁。
great importance
重要，重大，重要性
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events of tragic magnitude .惨祸。
size
规模；尺寸；大小
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electorates of less than average magnitude .低于平均人数的选区选民。
[count noun]a numerical quantity or value
数量；数值
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the magnitudes of all the economic variables could be determined .所有经济变量的数值都可以计算出来。
the degree of brightness of a star. The magnitude of an astronomical object is now reckoned as the negative logarithm of the brightness; a decrease of one magnitude represents an increase in brightness of 2.512 times.
星等（星的亮度）
[count noun]the class into which a star falls by virtue of its brightness
星等（亮度等级）。
[count noun]a difference of one on a scale of brightness, treated as a unit of measurement
星等差。
"late Middle English （also in the sense ‘greatness of character’）： from Latin
