a sudden happening that brings good fortune (as a sudden opportunity to make money)
同义词：boom, bonanza, gold rush, gravy, godsend, manna from heaven, bunce
windfall例句
He applied the windfall to payment of his mortgage.
他把那笔意外的收入用於偿付抵押。
After the storm she gather a basketful of windfall in the apple orchard.
风暴过後，她从苹果园地上拣了满满一篮子苹果。
windfall详细解释
wind.fall n.（名词）A sudden, unexpected piece of good fortune or personal gain.意外之财，横财：一种突然的、出乎意料之外的好运或收入Something, such as a ripened fruit, that has been blown down by the wind.被风吹落的果实：被风吹落的东西（果实），如成熟的果子
