1
receive/get a windfall
windfall 常指意外得到的一笔钱。
She received a windfall from her late uncle's estate.
她从已故叔叔的遗产中得到一笔横财。
被风吹落的果子
先理解核心含义，再看它在真实句子里的用法。
被风吹落的果子
fruit that has fallen from a tree
She received a windfall from her late uncle's estate.
她从已故叔叔的遗产中得到一笔横财。
被风吹落的东西
Something that has been blown down by the wind.
从树上掉落的果实
fruit that has fallen from the tree
被风吹落的行为
The act of something being blown down by wind.
意外的收获(如突然的赚钱机会)
a sudden happening that brings good fortune (as a sudden opportunity to make money)
After the storm, we collected the windfalls from under the apple tree to make cider.
暴风雨过后，我们从苹果树下捡起被风吹落的果子来酿苹果酒。
The children were told not to eat any windfalls from the orchard until they had been washed.
孩子们被告知不要吃果园里的落果，除非先洗过。
She picked up a windfall that had dropped from the old cherry tree.
她从老樱桃树下捡起一个被风吹落的果子。
windfall 常指意外得到的一笔钱。
She received a windfall from her late uncle's estate.
她从已故叔叔的遗产中得到一笔横财。
windfall 作定语，修饰 profit、tax 等词。
The government imposed a windfall tax on energy companies.
政府对能源公司征收暴利税。
此为本义用法。
The strong wind brought a windfall of apples from the tree.
大风从树上吹落了一堆苹果。
Not this
He got windfall from the lottery.
Use this
He got a windfall from the lottery.
Windfall 是可数名词，前面需要不定冠词 a/an 或定冠词。中文学习者常遗漏冠词，因为中文没有冠词系统。
Not this
She windfalled a large inheritance.
Use this
She received a large windfall inheritance.
Windfall 是名词，不能用作动词。中文学习者受汉语影响，可能误将其动词化，应使用 receive, get, obtain 等动词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
意外利润；暴利
The company made a windfall profit from the sudden rise in oil prices.
公司因油价突然上涨而获得了意外利润。
暴利税
The government introduced a windfall tax on energy companies.
政府对能源公司开征暴利税。
意外之财
The prize money was an unexpected windfall for the young athlete.
这笔奖金对这位年轻运动员来说是一笔意外之财。
被风吹落的苹果
We gathered windfall apples to make cider.
我们捡被风吹落的苹果来做苹果酒。
意外利润；暴利
The company made a huge windfall profit from the sudden increase in oil prices.
公司因油价突然上涨而获得了巨额意外利润。
暴利税；意外收益税
The government introduced a windfall tax on energy companies.
政府对能源公司征收了暴利税。
意外之财；横财
Selling the old furniture brought her a small windfall gain.
卖掉旧家具给她带来了一小笔意外之财。
Use windfall naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：wind（风）+fall（落下）——风吹落的果子白捡，就是意外的横财。
语域：neutral 常见场景：新闻报道、财经讨论、日常口语 windfall 原指被风吹落的果实，现代英语中更常用来比喻意外之财或意外的好运。它属于中性词汇，正式和日常场合都能使用，但在书面语和财经类语境中较为常见；日常口语中用起来会稍显正式，可根据场合灵活选择。
Words with -all (fall, call, hall, tall, wall, ball) rhyme with the -fall in windfall: they all have the /-ɔl/ sound. Be careful with lookalikes like windmill /ˈwɪndˌmɪl/ and windshield /ˈwɪndˌʃiːld/, which share the wind- prefix but have a different final vowel.
Dictionary facts from ECDICT, WIKTIONARY.