You can exercise three hours a day, seven days a week.

你可以每天锻炼三小时，一周七天。

youdao

I practiced for four hours every day and my piano teacher came three times a week to help me.

我每天练习四个小时，我的钢琴老师每周来辅导我三次。

youdao

Perform the workouts three times each week, with at least a day between workouts.

每个星期进行三次训练，每次训练至少保持一天的间隔。

youdao

We practice six days a week, usually, you know, three to four hours a day,

通常我们每周练习六天，你知道，每天三到四个小时，

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It was three hours a day, three days a week.

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