tiě / jiàng / bù / duàn / chuí / dǎ / shāo / hóng / de / tiě / piàn / bǎ / tā / dǎ / chéng / dāo / pī铁匠不断捶打烧红的铁片,把它打成刀坯。The blacksmith repeatedly hammered the red-hot iron sheet into a rough blade.