He's a firefighter? So, he has to exercise often.
他是个消防队员，所以他必须经常锻炼。
He's a firefighter?, so he has to exercise often.
他是个消防队员，所以他必须经常锻炼。
How often does he exercise? He exercises three times a week.
他多久锻炼一次？他每周锻炼三次。
So he often prescribed exercise.
因此，他经常开的处方是锻炼。
So he often prescribed exercise.
因此，他经常开的处方是锻炼。
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