This was not the time to take risks; he knew he should play it by the rule book.

这不是冒险的时候，他知道他应该按规则行事。

《柯林斯英汉双解大词典》

She makes it a rule to enjoy pop songs in her spare time.

她习惯在空闲时间听一些流行音乐。

youdao

Given the amount of time we spend in classrooms, and the number of shoes that pass through them every day, you may well understand me if I were to propose a no-shoes-in-the-classroom rule.

考虑到我们待在教室里的时间，以及每天在教室里走动的鞋子的数量，如果我要提出一条“教室内不穿鞋”的规则，你可能会非常理解我。

youdao

Henry won the case, condemned the clergy involved and questioned British rule all at the same time.

VOA: special.2009.04.24

Because we made time and space independently, was we in fact violating the time-out rule?

因为将时间和空间,分开考虑，违背腾时间原则了吗？

麻省理工公开课 - 媒体、教育、市场课程节选

There was certainly a long period of time in which I found the personality theory, that is,the personality theory with a no branching rule, to be the better and more plausible theory.

有一段时间内，我觉得无分支理论下的，人格理论，是更好更合理的理论。

耶鲁公开课 - 死亡课程节选

The equal time rule would apply nationally if Sharpton were on the ballot in more than 10 states, according to Bobby Baker, an FCC attorney.

CNN: NBC affiliates may not show Sharpton on 'SNL'

Over time firewall rule sets, called policies, tend to grow.

FORBES: Reduce Policy Complications to Enhance Security

Therefore, this Court will hew closely to the time-honored rule to sever with circumspection .

WSJ: Highlights From the Ruling