这就提出了一个问题，如果鞋子设计想在早期凉鞋的基础上有所改进，新材料和设计技术如何提供新的解决方案？
This raised the question if the design of a shoe was an evolution of the early sandal and how can new materials and design techniques provide new solutions?
如果你检讨你的笔记一个教科书定期，材料将变得更加有意义，并相信你会记得它更长的时间。
If you review your notes an textbook regularly, the material will become more meaningful and you will remember it longer.
如果您对XML完全是一个新手，请参阅参考资料中有关XML的背景和介绍性材料。
If you're completely new to XML, check out background and introductory materials in Resources.
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