| 释义 | au·tumn \ˈȯ]d.əm, ˈä], ]təm\ noun
 (-s)
 Usage: often attributive
 Etymology: Middle English autumpne, from Latin autumnus
 1.
 a.  : the season between summer and winter reckoned astronomically as extending from the September equinox to the December solstice
 b.  : the season comprising the months of September, October, and November — called also fall
 c. Britain  : the season comprising the months of August, September, October
 d.  : the season reckoned astronomically in the southern hemisphere as extending from the March equinox to the June solstice
 2.  : time of full maturity or incipient decline : latter portion : third stage
 < the autumn of life >
 3.  : a moderate olive brown that is darker and very slightly greener than the typical or average olive brown
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