stumbles
A stumble is when you nearly fall because you put your foot down awkwardly while you are walking or running.
I make it into the darkness with only one stumble.
我只踉跄了一下就跌进一片黑暗中。
stumble across , stumble on
If you stumble across something or stumble on it, you find it or discover it unexpectedly.
come across
I stumbled across an extremely simple but very exact method for understanding where my money went.
我意外发现了一种极其简单却能准确了解我的花销去向的方法。
stumbles , stumbling , stumbled
If you stumble, you put your foot down awkwardly while you are walking or running and nearly fall over.
He stumbled and almost fell.
他绊了一下,差点儿摔倒。