既然钱紧，你应该勒紧裤腰带。

Since money is tight, you should ___tighten ___your ___belt.

当政府支出增加时，纳税人常常不得不勒紧裤腰带。

Taxpayers often have to ___tighten ___their ___belts when government spending increases.

为了未雨绸缪，家庭有时需要勒紧裤腰带。

To save for a rainy day, families sometimes need to ___tighten ___their ___belts.