Not once a day, but twice a day.

一天还不止一次，两次。

youdao

Not once a day, but twice a day. Sometimes three.

不是一天一次，而是一天两次，甚至是三次。

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Not once did it occur to Michael that he could one day become a top student in his class.

迈克尔一次也没有想过有一天他会成为班里的尖子生。

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Jurgen Rehm said having one or two drinks a day is not as harmful as having seven drinks at once.

VOA: special.2009.09.08

They communicate by phone, "not often, once a day, or hardly ever, " she said.

CNN: STORY HIGHLIGHTS

And not just once in a while, not just on Veterans Day or Memorial Day, but these communities need to rally around these families every single day.

WHITEHOUSE: First Lady Michelle Obama and Dr. Jill Biden Address National Governors Association | The White House

It was a good treatment, but patients had to inject themselves once a day near the groin, not a very pleasant procedure.

FORBES: Magazine Article