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泾渭分明和扩散现象
更新时间: 2021-06-02 05:42:24  

1、泾渭分明是一个成语,源自自然景观。渭河是黄河的最大支流,泾河又是渭河的最大支流,泾河和渭河在古城西安北郊交汇时,由于含沙量不同,呈现出一清一浊,清水浊水同流一河互不相融的奇特景观,形成了一道非常明显的界限。

2、后人就用泾河之水流入渭河时清浊不混来比喻界限清楚或是非分明,也用来比喻人品的清浊,比喻对待同一事物表现出来的两种截然不同的态度。

关键词: 泾渭分明 扩散 现象

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