Because what we have learned in the last three years is that this segment of the market, whether it's education or under-developed nations, either way, it's a segment that demands incredibly high quality, incredibly high reliability, tremendous low cost and access, and a lot of challenges that frankly, without actually doing it, it would be very difficult to understand, and I'll explain that in just a minute.
因为在最近三年里我们了解到的 是市场的这个部分，不论它是教育 还是欠发达国家，任意一种，它都是要求 可靠的高质量，可靠的可依赖性， 非常低的成本以及可获取，还有很多的挑战 坦白说来，实际上并没有开始着手来做。 这显得很难理解， 我再解释一会儿。