Many web companies forget one cardinal rule of e-commerce: Web shoppers want as little hassle as possible.

许多网络公司忘记了一条电子商务的基本规则：网络购物者希望尽可能少的麻烦。

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As a salesman, your cardinal rule is to do everything you can to satisfy a customer.

作为一名推销员，首要原则就是要尽你所能使客户满意。

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Observe the cardinal rule of blogging: Be interesting!

遵守博客的规则：要有趣！

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The cardinal rule involving youth sports is to make the experience about the kids.

FORBES: Youth Football--Parents Gone Wild

They were breaking the cardinal rule of international trade law, at least according to the government of Antigua.

NPR: U.S. Slow to Change Internet Gaming Laws

The cardinal rule to remember is: children, although small, are certainly not stupid.

FORBES: What Are the Keys to Playing a Good Santa Claus at a Children's Christmas Party?