风餐露宿（風餐露宿）　

◎ 风餐露宿 fēngcān-lùsù

[eat in the wind and sleep in the dew—endure the hardships of an arduous journey or fieldwork;go through the hardships of living in the open] 形容旅途或野外生活的艰苦

饥饭困眠全体懒,风餐露宿半生痴。——宋· 范成大《元日》