She broke it open and read the small note inside, "If you practice hard, you will learn many things."

她把它打开，读着里面的小纸条：“如果你努力练习，你会学到很多东西。”

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Now this is mostly irrelevant to what we're talking about except for the fact that there are magnetic particles involved and they're really small because it turns out what's inside most of your laptops and desktop computers are these things called hard drives.

其实这与我们现在谈论的话题没什么关系,除了这里的磁性粒子有关系外,它们是很小的因为它们要放在,你的笔记本电脑或者,台式机中被称为硬盘的里面。

哈佛公开课 - 计算机科学课程节选

If you live in an area that was hit hard and can now get around your community, try to buy the things you need from local small businesses that are open.

FORBES: How We Can All Help Main Street after Sandy