sheet/ʃit; ʃiːt/n [C]1 a large piece of thin cloth that you put on a bed [→ blanket, duvet] 床单﹐被单: Have you changed the sheets (=put clean sheets on the bed)? 你换过床单了吗?see picture at见 BED 图2 a piece of paper, glass, or metal〔纸﹑玻璃或金属的〕片﹐块﹐张: +of a sheet of paper with names on it 写了姓名的一张纸see picture at见 PIECE1 图BALANCE SHEET