diāo / kè / qián / yào / xiān / chǔ / lǐ / mù / tou / shàng / de / jié / liú / bù / rán / chéng / pǐn / róng / yì / kāi / liè雕刻前要先处理木头上的节瘤,不然成品容易开裂。You need to deal with the knots on the wood before carving, otherwise the finished product is prone to cracking.