save (something) for a rainy day

Переводы
откладывать (что-то) на черный день
I always save a little money for a rainy day.
Я всегда откладываю немного денег на черный день.
Определения
To reserve or set aside something, usually money or resources, for a time when it might be needed unexpectedly or in the future, especially during difficult or unforeseen circumstances.