With the basic transformations covered, let's explore one additional topic that's useful when you draw multiple transformations and objects.

在介绍了基本的转换方法之后，让我们来了解另一个在绘制多个转换和对象时很有用的主题。

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In the process of multiple transformations, the return swap is always playing a key role.

在多次变形过程中，收益互换始终扮演着关键角色。

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The competition takes place across multiple categories, including sponge paint, airbrushing and face painting, all featuring different techniques and materials to achieve the transformations.

BBC: Bizarre body painting in Austria