在顺势动作后半程，如果你的左手高于右手，同时左肩高于右肩，说明你遇到了这类问题。

You know you're making this mistake if your left hand is above your right deep into your follow-through, with your left shoulder much higher than your right.

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这个镜头的时间分配可以粗略的分成如下几个阶段：5帧用来进去挤压（预备）。3帧拉伸（动作），2帧用来回落（顺势）。

The timing of this shot is roughly broken up as follows: 5 frames of getting into the squash (anticipation), 3 frames of stretching (action) and 2 frames of settle (follow-through).

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