餐风饮露

Explanation: Describe the difficult journey or a wild life. 　　Source: Ming Wang Shou-ren, "bury brigade text": "style meal drink dew, no Seoul Come hungry." 　　Examples: But the field survey, ~, geological work is arduous. ★ Xu Chi, "Geology of the Light" Thesaurus:  Arduous, Piper Road worn-out dress, live rough, Sleep thatch rest the head on lumps of clay, Cao Xing bivouac, Meal wind and rain, regard the sky as a curtain,regard the earth as a mat, Mayuepifeng, Bivouac Wind meal, In(rags and) tatters wicker, bamboo Road, Wicker Road in(rags and) tatters, Bilulanlou, Bilulanlv, Bilulanlv