The read slave technique is the best option for scaling SQL databases. It qualifies as horizontal scaling on the read side, and is transparent to the application.

从库技术是最好扩展SQL数据库的选项，即横向扩展了读，而且可以做到对上层的透明化。

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Bring a magazine or book and catch up on your pile of reading. Yes, you know, I'm talking about that "I'm gonna read it someday" stuff that has taken over your horizontal surfaces.

你可以拿本书或杂志放在你的书桌前，然后说到“我将来有一天会去读它的”，直到它们占满了你的书桌。

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The way to read this slide is to look at your age on the horizontal axis.

读懂这幅图的方法是看你在横轴上的年龄。

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