substance是不是可数名词

你好，物质 substance 是不可数名词。 That which has mass and occupies space; matter. 物体：有质量及占据空间的东西；物质 A material of a particular kind or constitution. 物质：特定种类或具有特定成分的材料 Essential nature; essence. 实质；本质 Gist; heart. 本旨；主旨 Th