tighten your belt
US /ˈtaɪ.tən jʊər bɛlt/
UK /ˈtaɪ.tən jʊər bɛlt/

1.
勒緊褲腰帶, 節衣縮食
to spend less money than you did before because you have less money
:
•
Due to the economic downturn, many families have to tighten their belts.
由於經濟不景氣,許多家庭不得不勒緊褲腰帶。
•
If we want to afford that vacation, we'll have to tighten our belts for a few months.
如果我們想負擔得起那個假期,我們必須勒緊褲腰帶幾個月。