尽管如此你仍不得不通过条件注释或优雅降级的方法对IE6提供支持。
You will still have to provide fall-back support for IE6, however, either with conditional comments or through graceful degradation.
简单的翻译，或者功能上的“优雅降级”，都不足以满足人们的需要。
Simple translation, or "graceful degradation" of a feature set, isn't sufficient to meet people's needs.
第一个级别的可访问性可以通过所谓的“逐步加强（progressive enhance）”或着“优雅降级（grace degradation）”来实现。
The first one can be handled by what is know as progressive enhance or graceful degradation.
第一个级别的可访问性可以通过所谓的“逐步加强（progressive enhance）”或着“优雅降级（grace degradation）”来实现。
The first one can be handled by what is know as progressive enhance or graceful degradation.
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