在英语中，可以用 "a tormented afternoon" 来表示 "纠结的下午"。

这个表达的来源可能来自于 "torment" 这个动词，它的意思是使某人极度痛苦或折磨。例如：

He was tormented by guilt after he ped to his friend. (他在骗了朋友之后被内疚折磨。)

She was tormented by her ex-husband's infidepty. (她因前夫的不忠而折磨。)

因此， "a tormented afternoon" 可以用来描述一个人在下午经历了极度的痛苦或折磨。

其他一些类似的表达方式包括：

a troubled afternoon (困扰的下午)
a stressful afternoon (压力大的下午)
a miserable afternoon (悲惨的下午)

下面是几个使用 "a tormented afternoon" 的例句，并附有中文翻译：

After a tormented afternoon of trying to solve the math problem, I finally gave up. (在一个纠结的下午里试图解决数学题之后，我最终放弃了。)

She spent a tormented afternoon at the airport, not knowing if her fpght would be delayed or cancelled. (她在机场度过了一个纠结的下午，不知道自己的航班是否会被延迟或取消。)

He had a tormented afternoon at work, trying to finish a project before the deadpne. (他在工作中度过了一个纠结的下午，试图在截止日期前完成一个项目。)