There will be one frame by default. Make a second frame by clicking on the little “page” icon at the bottom of the animation toolbar.

第三步： 打开动画窗口(Window -> Animation)，有一帧图片是默认的，点击动画工具栏里的小“page”图标来制作第二帧。

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Click the "play" icon to see how your animation looks. If it's "wiggling" too fast, change to interval to 0.2 or 0.3.

点击“播放”图标来看你的动画，如果抖动得太厉害的话就把间隔改为0.2或0.3。

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