I brush my teeth twice a day!

我每天刷两次牙！

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Normally he performs his devotions twice a day.

通常他每天进行两次祈祷。

《柯林斯英汉双解大词典》

And I'm holding meetings twice a day with the engineers and pushing them to move faster and come up with better quality search services.

类似的会议一天两次,督促他们加快开发进度，开发出更高质量的搜索引擎。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

We practice once or twice a day,

我们一天训练一到两次，

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Cecchi began taking shots of insulin twice a day, but still his condition worsened.

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Dr. Kazdin recommends that parents have their kids "practice" once or twice a day.

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Therapy, starting the day after surgery, would increase from once to twice a day, including weekends.

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