风餐露宿的英文：
[Literal Meaning]
wind/eat/expose/sleep
to eat in the wind and sleep in the open

[解释]
形容旅途或野外工作很辛苦。

[Explanation]
to endure the hardships of an arduous journey or fieldwork

[例子]
为了研究发生泥石流的原因，地质学家风餐露宿，天天在野外工作。

[Example]
In order to investigate the reason of the mudslide, the geologists braved the wind and dew and have been working in the wild every day.

Exposed to cold and wet wind and dew on a journey
风餐露宿

( feed on the wind and drink the dew;( fig.) undergo the hardships of roughing it on a trek
风餐露宿