(1)被(褥，床)單(broad piece of linen，cotton，etc;cloth eg for a bed)[C]：put fresh～s on the bed把新洗干凈的被單鋪在床上;change～s 換被單;tear an old～into cleaning rags 把一個(gè)舊床單撕做抹布;〖同〗blanket，covering，coat;
(2)薄片(板)(broad，thin，usually rectangular piece of any material)[C，常pl]：a～of aluminum foil/glass/tin/ice 一張鋁箔/一塊玻璃/一塊鍍錫鐵皮/一塊冰;～copper/glass/metal/iron 銅片/平板玻璃/金屬薄板/薄鐵皮;〖同〗leaf，piece，plate;
(3)(一定規(guī)格的)一張紙(piece of paper in a standard size for writing or printing on)[C]：two～s of B5 兩張B5的紙;Each～was covered with small，neat handwriting. 每張紙上都寫著工整的小字。
(4)一片(層)(broad，continuous expanse of material covering a surface)[C常pl](infml)：a～of ice/flame/water 一層冰/一片火海/一片汪洋;Flowering～s of water-lilies stretched across the lake. 大片大片盛開的睡蓮遍布湖面。Rain was coming down in～s. 大雨滂沱。～lightning 片狀閃電;
→′sheeting n 用作被(褥、床)單等的料子;護(hù)堤板