substance和matter都有物質的意思,一般指構成物體的材料。substance和matter表示“物質”時的區別在於,matter是不可數名詞,指構成物體的材料的總稱,而substance是可數名詞,指具體的某種混合物或純淨物,包括單質和化合物。如:This substance reacts quickly than that substance of nitric acid is a strong matter has three states--solid, liquid and gas.