Ancient lacquerware generally gets dirty over the years, and needs to be cleaned, but water is absolutely the last thing to do the cleaning with. Lacquer is waterproof, to be sure, but a very old piece usually has cracks in it.
只是古漆器通常表面都有塵垢，雖說漆本身具防水性，但傳世的漆器鮮少完整沒有裂痕的，所以切忌淋水刷洗。