buckram

n [U] stiff cloth used esp for binding books 硬布（尤用於装订书籍）.

BSI, BST, Bt, BTA, Bthu (also Btu), bubble, bubble and squeak, bubble bath, bubble gum, bubbly, bubonic plague, buccaneer, buck, buck-tooth, bucked, bucket, bucket seat, bucket-shop, buckeye, buckle, buckshee, buckshot, buckskin, buckwheat, buckwheat flour, bucolic, bucolics, bud, Buddha, Buddhism, Buddhist, budding, buddy, budge, budgerigar, budget, budget account, budgetary, budgie, buff,