在沙漠地区，水是一种稀缺资源。

Water is a ___scarce resource in desert regions.

在新加坡，土地稀缺，这使得城市规划成为一个挑战。

In Singapore, land is ___scarce, making urban planning a challenge.

干旱期间，食物变得稀缺。

During the drought, food became ___scarce.