As you rotate your real hand, you end up applying excessive momentum to the virtual object as if you were flinging it with a little spoon.

当旋转你真正的手腕时候，最后加到虚拟对象上的过大的动量，就像你用一个勺子甩出去一样。

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With the object selected double-click on the Rotate tool and rotate it -30 degrees. You have now created the top of your cube.

选中对象，在旋转工具上双击，对象旋转：-30度，现在绘制完成立方体的上方（顶部）。

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