出处:按学科分类—文体、科学、教育 外文出版社《小学生英汉汉英词典彩色版》第390页(201字)
[∫it]〈名词〉被单,褥单,床单;薄板,薄片;纸
The rain came down in sheets.大雨滂沱。
Fresh sheets were put on the beds.有人铺上新床单。