tighten their belt

• vi. 勒紧腰带(忍饥受寒；节衣缩食；减少开支)

例句

用作不及物动词 (vi.)

1. He's just lost his job so he has to tighten his belt.
   他刚失去工作所以他必须节衣缩食。
2. I'll have to tighten my belt now that I can get no more overtime working.
   由于我不能再加班加点，我只得节衣缩食。