live (from) hand to mouth
US /lɪv frəm hænd tə maʊθ/
UK /lɪv frəm hænd tə maʊθ/

1.
勉强糊口, 仅够糊口
to have just enough money to live on and nothing extra
:
•
After losing his job, he had to live from hand to mouth.
失业后,他不得不勉强糊口。
•
Many families live from hand to mouth in developing countries.
许多发展中国家的家庭勉强糊口。