A broad, low-lying, typically crescent-shaped mound of sandy or loamy matter that is formed by the wind, especially along the windward side of a lake basin.
眼镜堡一片广阔的、地势低的、典型的新月形沙堆或土堆，由风力形成，尤其是沿湖泊的顺风方向。
2
The sandy materials mainly originate from modern fluvial action, dry lake deflation and older river courses.
沙质沉积物主要来源于现代流水作用、干涸湖泊和河流故道。
3
On summer days, up to 8,000 sunbathes lounge on its sandy beach or cool off in the 10,000-square-meter (2.5-acre) lake.