社会要生存需要建立有高度适应性的行为准则。

Societies need to develop highly adaptive behavioural rules for survival.

《柯林斯英汉双解大词典》

一些体制和实际的准则也被建立起来了。

Certain institutional and practical norms had become established as well.

youdao

G20 财长们还讨论了建立“自愿行为准则”的可能性，以指导债权人和濒临债务违约的国家之间的谈判。

G20 ministers also talked about the possibility of creating a "voluntary code of conduct" to govern negotiations between creditors and countries on the verge of defaulting on debt.

youdao

I don't know quite how Alex managed it but that's what they say, but the principle is established.

我不太清楚亚历山大是怎么塞到枕头底下去的,但他们确实是这么说的,准则就是由此建立的

耶鲁公开课 - 古希腊历史简介课程节选

They're rules for how a company should keep its books so that there's some regularity and standards in how accounting is done.

准则规范了公司如何记账,并建立了一套,会计规范和标准

耶鲁公开课 - 金融市场课程节选