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The floor consisting of three kinds of sand manifests the Inner Mongolian people's wisdom;
展厅地面由三种不同状态的沙子叠加而成，体现了内蒙古人民使沙子变废为宝的智慧；
youdao
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The floor consisting of three kinds of sand manifests the Inner Mongolian people's wisdom;
展厅地面由三种不同状态的沙子叠加而成，体现了内蒙古人民使沙子变废为宝的智慧；
youdao