live within your means
US /lɪv wɪðˈɪn jʊər miːnz/
UK /lɪv wɪðˈɪn jʊər miːnz/

1.
量入为出, 在自己的经济能力范围内生活
to spend no more money than you earn
:
•
It's important to live within your means to avoid debt.
量入为出以避免债务是很重要的。
•
After losing his job, he had to learn to live within his means.
失业后,他不得不学会量入为出。