《牛津英语词典》将 LOL 定义为一个叹词，“主要用于电子通信……以引起对笑话和幽默语句的注意，或表示可笑”。

The OED defines LOL as an interjection "used chiefly in electronic communications… to draw attention to a joke or humorous statement, or to express amusement".

youdao

这个英国老师非常幽默，经常给我们讲笑话。

The British teacher is very humorous and always tells us jokes.

youdao

你不必为了展现你的幽默感而在小组里成为讲笑话的人。

You don't have to be the joke teller in the group in order to show your sense of humor.

youdao

And so we sort of sit back from the situation and say, "Look, hey, you're a really nice guy, and we like you and your family. And you're fun to be with and we like your jokes, but you didn't get the job done."

我们得保持客观，说，你很不错，我们喜欢你和你的家庭,你很幽默，我们很喜欢你讲的笑话，但是你并没有完成任务“

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选