One time,Miss Sullivan suggested leaving a problem to solve until the next day.

VOA: special.2009.11.08

Or sometimes they might have men one day, women another time, and mixed at other times.

有时一天男子用，一天女子用，其余时间同用。

耶鲁公开课 - 新约课程节选

but in that time, I'm hoping to set up my life such that one day, in the long term,

但长期以来，我希望有一天能够掌握自己的生活，

事业和人生都重要 - SpeakingMax英语口语达人

We started small, building our company and our brand one book at a time, one day at a time.

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The truth of "One Day at a Time" was brought home to Franklin when in 2005 she got together with both TV daughters for a "One Day at a Time" reunion special.

WSJ: Bonnie Franklin, 'One Day At a Time' star, dies

The first step to becoming an entrepreneur is deciding that you are going to do something, but to actually become an entrepreneur you must have the strength to tirelessly execute your idea one day at a time, day after day, for as long as it takes.

FORBES: What My Dog Taught Me About Entrepreneurship