你必须戒烟。最重要的是，你应该开始锻炼身体。

You must quit smoking. Most important of all, you should start taking exercise.

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事实上，你应该从你的脚开始锻炼。

In fact, you should start with the exercise on your feet.

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在长时间休息之后开始锻炼，你应该做的最重要的事情之一的是设置的健身目标。

One of the most important things you should do when starting exercising after a long break is to set fitness goals.

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