What does "quicksand" mean?

Explanation: sand that moves with the wind or water.

Pinyin: liú shā

Source: "Songs of Chu Lisao": "Suddenly I made this quicksand, and I was accommodating according to Chishui."

Make sentences:

We plant trees to prevent quicksand.

Measures need to be taken to protect farmland from quicksand.

This is the saddle tip exposed from the quicksand layer.

Experiments show that a tamarisk tree on the Gobi desert will be like a lone warrior, which can intercept 2500 cubic meters of quicksand a year.