问题描述：
英语翻译
Mary is reading something about how to keep healthy on the Internet.
Brush your teeth twice a day and see a dentist at least once a year.
这两句翻译成汉语.
每天锻炼30分钟,每周三四次.
这句翻译英文
Mary is reading something about how to keep healthy on the Internet.
Brush your teeth twice a day and see a dentist at least once a year.
这两句翻译成汉语.
每天锻炼30分钟,每周三四次.
这句翻译英文
问题解答：
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