在画笔工具被选择的情况下，你可以按下“[”或“]”（左右方括号键）来增大或减小画笔的尺寸。

With the Brush tool selected, you can increase / decrease the brush size by pressing [ or ] key (square bracket key).

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您可以调整草图的画笔大小，将滑块滑到左边缩小尺寸，滑到右边扩大尺寸。

You can adjust the brush size for your sketch by sliding the bar to the left for smaller size and to the right for larger size.

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相机的功能就象是一个拥有所有尺寸圆形画笔的画家。

The camera functions very much like a painter having access to set of round brushes of all sizes.

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