If she doesn't answer my calls, I make a rule of calling no more than twice a day every other day.

假如她不接你电话，我保持的原则是：每天打电话不超过两遍。

youdao

A good rule of thumb is that a broker must generate sales of ten times his salary if his employer is to make a profit.

一个很好的经验法则是，雇主要获取利润的话，其中间人必须创造10倍于自己薪水的销售额。

《柯林斯英汉双解大词典》

We make it a rule that each of us cleans the bedroom one day a week.

我们每个人每周打扫一天卧室，这是我们的规定。

youdao

Watch America lose its scientific and competitive edge to other nations that make a comprehensive knowledge base a rule of the society.

FORBES: Ben Stein

Zhao kept at it for more than a decade, and the result is a concert of stifled voices that, together, make a brave and angry cry for democratic representation and the rule of law.

NEWYORKER: Petition

Tripoli, Libya (CNN) -- Ahead of a landmark vote in Libya, an international monitor warned that Moammar Gadhafi's successors risk repeating the ousted dictator's mistakes unless electoral winners make rule of law a top priority.

CNN: Rights group: Rein in Libyan militias