区别就是darkness是形容词dark的名词形式，词根dark+后缀ness，中文意思是n. 黑暗深色，暗色邪恶，罪恶例如The darkness had disorientated him.黑暗使他迷失了方向。A voice boomed out from the darkness.黑暗中传来低沉有力的嗓音。He was sitting alone in the darkness.
