A bed of loose sand mixed with water forming a soft, shifting mass that yields easily to pressure and tends to engulfany object resting on its surface.

• 流沙一种由松散的沙子和水混合成的沙层,形成一堆松软、移动的物质,在压力下很容易塌陷,并可吞没置留在沙面上的任何物质。