每天喝足够的水。
Wash our hands often, especially before meals and have healthy food and drink enough water every day.
我们也应该勤开窗通风，经常洗手，尤其饭前，并且吃健康食品，每天喝水。
And we should wash our hands before meals and drink enough boiled water every day.
我们应该饭前洗手每一天喝足够的开水。
We'd better drink enough water and milk every day.
我们最好要喝足够的水和牛奶每天。
We'd better drink enough water and milk every day.
我们最好要喝足够的水和牛奶每天。
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