Because if you did what I suggested with the list, the time to look up the key would be linear in the length of the list. You'd have to look at each element until you found the key.

字典是用一种很神奇的，叫做散列法的算法,来实现的，后面我们将,会学到一点关于。

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But his question is still one that lingers and one that Plato includes for a purpose.

但他的问题仍萦回不散,且柏拉图是因为一个目的来加以收录。

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Let's draw a line through a scatter of points here.

我们来画一条切合散点的直线

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