谁能帮我解释一下柏拉图（PLATO）感官世界和形式世界的定义?

谁能帮我解释一下柏拉图（PLATO）感官世界和形式世界的定义?
首先,我不知道翻译对不对,就是world of forms和world of sense experience.
以下是一些英文定义：
World of Sense Experience（感官世界）: The reality of physical objects in space and time, which are objects of the senses and which are in flux, growing, decaying, and changing. This world can be described as an impoverished and imperfect world, a world of shadows.
World of Forms（形式世界）: Another kind of reality, a reality not subject to change, a reality of forms, which are objects of thought like the idea of a triangle, and are not in space and time. The “forms” are eternal.