under canvas
"在帆布下面" (指露天活动，尤其指野营或露宿)
口语·描述露营生活
英文释义
to be staying in a tent or camping
例句
We spent the whole summer under canvas in the mountains.
典故来源
‘canvas’指帆布帐篷，源于游牧或军事露营传统，表示住在帐篷里。