规则不能定得太死。

You can't lay down hard and fast rules.

《牛津词典》

有时候，一个规则的结果太容易确定，以至于您可以为用户提供一个简单的修正程序。

Sometimes, the results of a rule are so easy to fix that you can provide a simple repair procedure for the user.

youdao

说得太对了，不过对白水事件来说，存在着不同的规则。

Of course it was, but there were different rules for Whitewater.

youdao

Like in popular music there's often a couple of verses and a chorus and a bridge and you can predict each different movement of the piece, and that's more regular than-- Couldn't say it better myself.

就像在流行音乐中有很多的曲段，副歌,和过渡乐节，这样你就可以预测到音乐的每一个变化，这样就比别的要规则-,光我一个人不好说太细。

耶鲁公开课 - 聆听音乐课程节选