Playing with playdough or clay is good for children to release tension and make symbolic creations.

玩橡皮泥或黏土对孩子们有好处，这样可以释放紧张情绪，并制作象征性的物品。

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According to experts the lack of traction has nothing to do with the color but the implementation of the clay -- which has been playing much faster than usually expected on such a surface.

CNN: May 11, 2012 -- Updated 2124 GMT (0524 HKT)