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Quicksand consists of a buoyant blend of round granules of light sand, blended with water, or of light soil and gritty mud, or of mud peppered with pebbles. 流沙是由輕沙的圓形小顆粒與水，或輕質土壤及砂礫或摻襍有鵞卵石的爛泥混郃而成。