物质对我来讲很简单，没有那么抽象，就是可以用感官或者物理方法去认识的事物。
The concept of material to me is quite simple, not so abstract, just to realize things with senses or physical method.
物质占有难以用抽象的感受进行回想。
Material possessions are harder to think about in an abstract sense.
如果我们说自然世界就是物质的世界或原子的世界，那么我们只是被弃于现代物理学远为抽象的概念术语之后。
If we say it is the world of matter, or the world of atoms, we are left behind by modern physics, which characterizes the world in far more abstract terms.
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