Exactly like dessert right but it means to leave someone alone and to abandon them in the middle of nowhere.

和“甜点”完全一样，对吧，但它的意思是着让某个人只身一人，抛弃他们茫茫荒野中。

There's also another common expression " to leave (leave) someone alone."

还有一种常见的表达方式是“让（离开）某人一个人呆着” 。

Leaving someone alone, like you and Harvey left me alone since Daniel?

不去烦某人 就像你和哈维那样在丹尼尔离开之后对我不闻不问？

" To leave someone alone" means to allow the person to be by himself – to leave the room or leave the area so that the person isn't around anyone else.

“让某人一个人呆着” 意味着让这个人独自一人——离开房间或离开那个区域， 这样这个人就不会在其他任何人身边。

But traditionally, " to let someone alone" would mean to not bother the person and " to leave someone alone" would mean to make sure the person is by himself without anyone else there with him.

但传统上，“让某人独自一人”意味着不打扰这个人， 而“让某人一个人呆着” 意味着确保这个人独自一人， 没有其他人在他身边。

In more recent English – in the last 40,50 years, I suppose – people have started using the expression " to leave someone alone" to mean the same as " to let someone alone," meaning to not bother someone.

在最近的英语中——我想是在过去的 40,50 年里——人们开始使用“to leave someone alone” 这个表达与“to let someone alone” 的意思相同， 意思是不打扰某人。