如果你想提高跑步速度，你也可以向你的体育老师寻求建议。
If improving your running speed is something you'd like to work on, you could also ask your gym teacher for advice.
区域4，一种有意识地提高跑步速度的强度，但是，仍属于舒适范畴。
Zone 4 is a running intensity that requires a conscious effort to go fast but is still comfortable.
甚至您不打算比赛，提高跑步效率，从而提高跑步速度，意味着您将在有限的运动时间内安排更多训练。
Even if you're not competing, moving more efficiently, and therefore faster, means that you pack more work into any given time spent exercising.
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