C495 Xue yang's theory of carving

The Old Man Liu said to Xue Yang: "Your appraising techniques are so powerful, I believe you know how to bet stones, right?"

Xue Yang laughed: "Just a little."

The Old Man Liu said: "Since you know how to bet stones, then you naturally understand jadeite, then do you know about engraving?"

Xue Yang laughed: "Just a little bit of knowledge."

Old Man Liu said: "Then let me ask you