慢跑是一项很好的锻炼。
Running on the spot is good exercise.
原地跑步是一种很好的锻炼。
Running: Many people think this is the best type of exercise because it is very simple and can be done anywhere. Running is a very good way to lose weight and to stay healthy.
跑步：很多人认为跑步是最好的运动方式，因为它简单、方便、而且还是一种很好的减肥和保健方式。
Running: Many people think this is the best type of exercise because it is very simple and can be done anywhere. Running is a very good way to lose weight and to stay healthy.
跑步：很多人认为跑步是最好的运动方式，因为它简单、方便、而且还是一种很好的减肥和保健方式。
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