noun · molten rock expelled by a volcano during an eruption

炽热的流沙从火山口缓缓流下。

noun · loose sand that yields easily to pressure and sucks in objects

这里的沙漠有许多危险的流沙。

semi-liquid filling in pastries, such as salted egg yolk custard

这家餐厅制作的流沙包非常出名。