Bfs
abbr. 宽度优先搜索（breadth first search）；油压缓冲器开关
🗣️ 情景例句
I saw a real shark.
我看到一条真正的鲨鱼。
He seems very serious, but in fact he has a delightful sense of humor.
他看上去很严肃，其实很诙谐。
So then what happened?
后来怎么样？