在有些地区，水是稀缺资源。

Water is a ___scarce resource in some areas.

在新加坡，土地稀缺，因此修建更多道路很困难。

In Singapore, land is ___scarce, so building more roads is difficult.

战争期间，食物变得稀缺，价格飙升。

During the war, food became ___scarce and prices soared.