bed sheet

US /ˈbed ʃiːt/
UK /ˈbed ʃiːt/
"bed sheet" picture
1.

床單, 被單

a rectangular piece of cotton or other fabric, used in pairs to cover a mattress and a sleeper on a bed

:
I need to change the bed sheets today.
我今天需要換床單
The clean bed sheets felt so soft and fresh.
乾淨的床單摸起來又軟又清新。