n.[C]

1. 被风吹落的果实
   After the storm she gathered a basketful of windfalls in the apple orchard.

   风暴过后，她从苹果园地上拣了满满一篮子苹果。

2. 意外的收获；意外之财
   I had a windfall from the football pools.

   我从足球比赛赌博中发了一笔横财。

n.

1. an apple or other fruit blown from a tree by the wind.
2. a piece of unexpected good fortune, especially a legacy.