If you don't put users first, you leave a gap for competitors who do.
如果你不把用户放在首位，那你的竞争对手将会有机可趁。
The best time to start monitoring your systems is when you have first put your system in production and it is running well, rather than when your users are screaming about slow performance.
开始对系统进行监视的最佳时间是当您首次将系统应用到产品环境中并且正常运行时，而不是等到用户抱怨系统的性能非常糟糕的时候。
Because users scan websites in an F-shape, some designers put the cheapest offer on the left side of the table, so that users see it first.
因为用户会以“ F ”形视线浏览网站，一些设计者将最廉价的商品放在列表左侧，以使用户第一眼就能看到。
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