n.无家可归者；迷途动物；无主失物；信号旗
A waif is begging on the street. 街上有一个流浪儿正在乞讨。
He has been a waif for many years. 他已经许多年无家可归了。
She loved cats, and would take any waifs and strays into her home. 她喜欢猫，也经常会带一些流浪的猫到她的家里。
流浪儿
