carbon paper

(sheet of) thin paper coated with carbon or some other coloured substance and used between sheets of writing-paper for making copies 复写纸.

car-port, carafe, caramel, caramelize, -ise, carapace, carat, caravan, caravanserai, caraway, carbide, carbine, carbohydrate, carbolic, carbolic acid, carbon, carbon black, carbon copy, carbon dating, carbon dioxide, carbon monoxide, carbonated, carbonic acid, carboniferous, carbonization, -isation, carbonize, -ise, Carborundum, carboy, carbuncle, carburettor, carcass, carcinoma, card, card index, card vote, card-carrying member, card-game, card-sharp (also card-sharper), card-table, cardamom, cardboard,