勒紧

We’ll have to tighten our belts if we want to save any money for our holidays this year.

想攒点钱今年去度假，就得勒紧腰带。

If food is scarce it's no use complaining; we shall just have to pull in our belts.

如果食物短缺, 抱怨也没有用, 只能勒紧腰带。