| 单词 | leaf fall | 
| 释义 | > as lemmasleaf fall   leaf fall  n. 		 (a) the fall of leaves; the season of autumn (cf. fall n.2 40a);		 (b) fallen leaves. ΘΚΠ the world > plants > part of plant > leaf > plant defined by leaves > 			[noun]		 > shedding leaves or petals leaf fall1616 defoliation1659 leaf shedding1850 the world > time > period > year > season > 			[noun]		 > autumn harvest902 harvest-tidec1175 harvest time1362 autumn?c1400 falling of the leaf?1504 fall1550 leaf fall1616 go-harvest1735 back-end1820 fall time1833 1616    G. Nid Certaine Serm. iv. 93  				Leafe-fall declareth plainly that his body is..a poore cottage, whose toppe is couered with a sodde of earth. 1840    R. Browning Sordello  iii. 95  				Leaf-fall and grass-spring for the year. 1920    A. H. Unwin W. Afr. Forests & Forestry ix. 294  				It is the fastest growing of all the Albizzias... It scarcely protects the soil, but the leaf fall makes a good humus. 1947    G. F. Wilson Detection & Control Garden Pests vi. 107  				Premature leaf-fall is associated with several factors other than pest attack. 2011    Independent 19 Mar. (Traveller section) 5/2  				The surface is mostly springy—autumn's leaf fall still cushions your boots. < as lemmas | 
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