Add layer mask and paint some parts of the line with black.

添加图层蒙版和油漆的部分用黑线。

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The black face in the mask is means for valor .

面具中的黑脸象征勇猛。

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To hide things, just paint on black over the mask.

要隐藏的东西，只要画上黑色的面罩。

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To hide things, just paint on black over the mask.

要隐藏的东西，只要画上黑色的面罩。

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