Apples are considered a nutritious food; so this expression is intended as advice. To stay healthy (and to not have to visit the doctor) you should eat healthy food like, an apple, every day.

苹果富含营养，所以这种表达代表一种建议。要保持健康(不用看医生)你应该每天吃苹果这样的健康食物。

youdao

If you want to keep healthy, you should eat a lot of healthy food every day.

如果你想保持健康，你应该每天吃大量的有利于健康的食品。

youdao

First, good healthy eating habbit is very important. we should eat three healthy meals every day instead of junk food.

第一，好的饮食习惯非常重要。 我们应该每天吃三顿健康的食物，而不是垃圾食品。

youdao

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