rules of thumb

n. 拇指规则, 经验原则

例句与用法：

I am thoroughly conversant with all the rules.

我对所有的规则了如指掌。

His behavior transgressed the moral rules of the social conduct.

他的行为违背了社会行为的道德准则。

The unreasonable rules were revoked.

不合理的规则被废除了。

We should act in conformity with the rules.

我们应该依照规定行事。

A labyrinth of rules and regulations.

错综复杂的规章和制度

The rules will remain in effect until October.

这些规章将实施到十月份为止。

The membership disagrees/disagree on the propose change in the rules.

会员们对拟议中的修改条例一事持不同意见。

When the rules for police procedure were laid down, a lot of grey areas remained.

警方的程序规章定立后,遗留下许多难以处理的灰色区域。