那一幅幅想像出来的积极画面，增强了我能将目标变为现实的信心。
With every positive mental picture, it reinforced that my goals could be a reality.
为了达到渐进增强的目标，这是最简单方式。
Given the goal of progressive enhancement, this is the easiest path.
如果要进行一般性的功能增强，只需对缺省目标，或是样式表进行修改。
Common enhancements are applied to the default targets or as modifications to the stylesheet.
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