在动画窗口下复制第一帧，将地图图层往左边移动。

In animation window duplicate the first frame and move the map layer towards the left.

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此滤镜用于复制参数所指定的单帧。

Duplicates a single frame given as an argument.

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复制一个最终帧，并如下添加动作。

Create successive duplicate frames and add motion as shown.

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复制一个最终帧，并如下添加动作。

Create successive duplicate frames and add motion as shown.

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