Yes,there should be a technology nowadays that both show the mien of ancient item and not damage its integrity,in a word it seems a bit indiscretionary to polish it with grind stone.

• 是啊；可是想想看现在科技这么发达；应该能够找到一种办法；既充分展现古器的风采又不伤害古器的完整性；总之单单用磨刀石似乎太卤莽了.