I wonder how I can keep healthy.
我想知道我怎样才能保持健康。
To keep healthy, you should take more exercise.
为了保持健康,你应该多做运动。
Exercising is an excellent way to keep healthy.
锻炼是保持健康的一种极佳方式。
You get sick and then you die, suggesting that sleeping is good to keep you healthy.
而是慢慢地生病死去,这表明睡眠对保持健康非常重要。
Our immune system's function is to keep us healthy in the face of an environment where there are lots of things that could potentially harm us.
我们免疫系统的功能就是保持自身健康,在面对危机四伏的环境时,使我们免受伤害
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