sleep rough

• n. 露宿(在公园过夜)

sleep rough的用法和样例：

例句

用作名词 (n.)

1. Poor old people have to sleep on the street.
   穷苦老年人只能露宿街头。
2. He'd been sleeping rough for a week, in ditches and haystacks.
   他在沟里和草堆里露宿了一个星期。