However,the husband may decide that it is best to leave things alone and not create more problems.

VOA: special.2010.05.30

I'm just gonna hit enter to leave it alone, and now I'm back at the prompt.

我们只需要敲入回车键，不管它就可以了，我们又立刻回到刚刚的界面。

哈佛公开课 - 计算机科学课程节选

If you leave the body alone, maybe there's no force acting on it.

如果你把物体丢在一边,可能就没有外力作用在它上面

耶鲁公开课 - 基础物理课程节选

It means to leave alone and not interfere.

VOA: special.2010.04.18