"Four-letter word" 是一个英语短语，字面意思指的是由四个字母组成的单词，但在日常语言中，这个短语常常用来指代含有脏话或令人不快的词汇。

翻译：

Four-letter word：四字词（通常指脏话）

读音：

/fɔːr ˈlɛtər wɜːrd/ （英式发音）
/fɔr ˈlɛtər wɜrd/ （美式发音）

用法：

这个短语常用来隐晦地指代脏话或令人不适的词汇。通常用在指责、批评或自我约束的语境中。

例句中，可能会用 "four-letter word" 来描述某个粗鲁的词。

例句：

He said a four-letter word when he missed the shot. (他错过了投篮时说了个脏话。)

It's not appropriate to use four-letter words in front of children. (在孩子面前使用脏话是不合适的。)

She used a four-letter word to express her frustration. (她用脏话表达了她的沮丧。)

We should avoid using four-letter words in professional settings. (我们应该避免在职场中使用脏话。)

Don't use that four-letter word around here. (别在这里说脏话。)

I can't believe he called me that four-letter word. (我简直不敢相信他说了那样的脏话。)

He dropped a four-letter word under his breath. (他低声说了个脏话。)

She was so angry that a four-letter word slipped out. (她太生气了，一个脏话脱口而出。)

It’s hard to keep calm when you’re surrounded by four-letter words. (当你四周充满脏话时，很难保持冷静。)

He’s known for his use of four-letter words when he's upset. (他在生气时常常说脏话。)

短语搭配：

Use a four-letter word：说脏话

Four-letter expletive：脏话、侮辱性词汇

Avoid four-letter words：避免使用脏话