sleep rough
露天睡眠，指在戶外或沒有固定住處過夜
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英文釋義
to sleep outside, often in uncomfortable or temporary conditions, typically due to a lack of permanent housing or accommodation
例句
Many homeless people have to sleep rough in winter.
典故來源
'rough'指粗糙、艱苦，直指無遮蔽的戶外睡眠，常見于流浪者語境。