这是一个Chikuno cube的图片，它是一个在北美人冰箱中经常见到的一盒竹炭除臭剂。

This is an image of a Chikuno cube, a Japanese counterpart to the boxes of baking soda commonly found in refrigerators throughout North America.

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对于每一个商品种类，比如一盒16盎司的牛奶，收入好的家庭要比穷家庭平均多花费25%。

For each product category-a 16-ounce carton of milk, say-well-off households paid an average of 25% more than poor households.

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一个穿着衬衫打着领带的男人带着一盒甜甜圈走向他的车子。

A man in a shirt and tie carries a box to his car.

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It's going to let us bury away the specifics of something, and treat that computation like a black box. And by black box, I mean, literally behaves like a mysterious little black box.

通过抽象我们可以将一些细节,掩埋起来并将这一段计算当成黑盒,说到黑盒我的意思就是,字面上的像一个神秘的小黑盒。

麻省理工公开课 - 计算机科学及编程导论课程节选