“溜”常常用来说人偷偷地、很快地离开一个地方，比如“他自己溜走了”。

"溜" is often used to describe someone sneaking away quickly from a place, for example, "他自己溜走了" (He slipped away by himself).

它也可以说东西很滑，或者说一个人做某件事很熟练。

It can also describe something very slippery or a person doing something skillfully.