Erika 您好，Spine直到v3.8为止至少需要4个关键帧才能完整旋转。 Hello, Spine until v3.8 requires at least 4 keyframes to make a full rotation. Loading Image 这在Spine v4中进行了更改，仅需要两个。 This was changed in Spine v4, which only requires two.
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