Since the Web site is likely to expand and change over time, we need to expend some effort up front to make the site easy to maintain.
因为Web网站将会随着时间而扩展和改变,我们需要预先做一些工作以使这个网站容易维护。
More code to send over, in addition to the content in HTML, will make the Web site slower to load.
在HTML内容以外发送的代码越多,网站加载的速度越慢。
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