They live from day to day, looking after their sick daughter.

他们过一天算一天，日复一日地照顾着生病的女儿。

《牛津词典》

Never give it much thought. you just live from day to day.

从来没有思考太多。 你要做的就是一天一天地活下去。

youdao

A sick man faced with certain death learns to live from day to day in the short future that is left to him.

一个病入膏肓必死无疑的人是会学会在所剩不多的日子里过一天算一天的。

youdao

So,I'm telling you from the beginning, but don't dream and think that somehow the Final's going to be so much different from your regular day-to-day performance, but to give you some reason to live after the Midterm.

所以我在开始告诉你们,但是,不要以为你们的最终成绩,和你们的平时表现,没什么关系,但这能让你们不至于期中的时候就绝望了

耶鲁公开课 - 基础物理课程节选

More and more people live from day to day, with little idea of what the future may bring.

BBC: A Point of View: The revolution of capitalism

Live from day to day.

CNN: Ex-NBA star coaches middle school, transforms his 'hood

Nor does it preclude a person from one day revealing all their attributes and faults publicly, yet the next day deciding to live a more private life.

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