作为经验法则，每125克面粉需要一个鸡蛋。

As ___a ___rule ___of ___thumb, you need one egg for every 125g flour.

我认为我只是众多将日记视为最珍贵财产的人之一，但根据经验法则，我认为人们会根据物品的可替代性来评估其价值。

I think I'm only one among many who have a diary as their most precious possession, but, as ___a ___rule ___of ___thumb, I would think that people value objects in terms of how replaceable they are.

在商业中，一个经验法则是总是少承诺多交付。

In business, ___a ___rule ___of ___thumb is to always underpromise and overdeliver.