餐风饮露 [- - yǐn lù]feed on the wind and drink the dew — hardships of travel or a hard life in the open country; brave the wind and dew; endure the hardships of an arduous journey; be fully exposed to the wind and dew; make a hard journey braving the wind and dew:
•¶ 他们餐风饮露， 历尽艰辛，终于回到了自己的祖国。 They endured the countless hardships of the arduous fieldwork, and at last returned to their motherland.