But, how will you learn of important thing that you cannot experience for yourself?
但是你怎么学习那些自己无法亲身体会但是又很重要的事情呢？
Even if you learn while multitasking, that learning is less flexible and more specialized, so you cannot retrieve the information as easily.
即使你能够多用任务处理的方式学习，因为学习的过程灵活性不大，更专业，所以你不能轻易的获得信息”。
You will learn how to approach Ajax functions in a way that will provide a fallback for users who cannot take advantage of the fluidity your Ajax features have to offer.
您将了解如何以一种特别的方式接近 Ajax 函数，这种方式将向不能利用您的 Ajax 特性拥有的流动性（fluidity）的用户提供一个回退操作（fallback）。
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