详细解释:n. 流沙, 流沙区, 危险状态
英语解释：
名词 quicksand:
a treacherous situation that tends to entrap and destroya pit filled with loose wet sand into which objects are sucked down例句：
A place filled with mud or quicksand that is a hazard to cattle.沼穴充满泥浆或流沙的地方，可对牛群构成威胁