Not only is this important for your safety, it's also proper running form .
这不仅有助于安全，而且也是正确的跑步方法。
Video - Proper running form: Watch this video to see what your running form should look like.
视频-正确的跑步方式：观看这个视频去看看你的跑步方式应该像什么。
If you're not sure what good running form looks like, check out this video or read these tips for proper running form.
如果你对良好的跑姿不确定，对照这段录像检查一下或者读一下关于正确跑姿的这些贴士。
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