贫富差别悬殊，民难生计，怨声载道。
Disparity between the disparity, people hard livelihood, restless.
半坡是一个没有贫富差别的原始社会。
Banpo is a difference between the rich and not the primitive society.
贫富差别这个一直困扰人类的社会话题，其实是一种自然现象。
The difference between rich and poor is a historic perplexing social subject of talk and is also a natural phenomenon.
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