土本身(材料)
這一支就是核心畫面本身:可以挖、可以磨、可以拿在手上的那種土。
noun · C1
A soft earth, dug out of the ground, that is reddish-yellow or brownish-yellow because it holds iron. People grind it into a powder and mix it with water or oil to make paint, dye, or colour for cloth.
赭土/赭石顏料