cardboard

n.厚硬纸板

carbon paper, 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, cardi(o)-, cardiac, cardigan, cardinal, cardinal points, cardiologist, cardiology, care, care about, care for, care nothing about, careen, career, career girl (also career woman), careerist, carefree, careful, carefully, carefulness, careless,