None of the guidelines are meant to be absolute; use them as rules of thumb and feel free to break the rules whenever your particular needs require it.
没有哪个规则是绝对的，可以将其作为经验规则使用，如果确实需要完全可以打破这些规则。
This article will break down the essentialcharacteristics of great Web sites into some easily followed rules of thumb.
这篇文章将把伟大站点的基本特征拆分成一些可以简单遵守的拇指规则（指经验法则，一种可用于许多情况的有用的原则）。
On a horizonal shoulder holster, the thumb-break should cover the hammer, not the handle of the gun.
在横式肩枪套，拇指皮带应覆盖锤子，而不是手柄。
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