There is no rule without an exception.

有规则必有例外。

《新英汉大辞典》

No rule without an exception.

没有一条规则没有例外。

youdao

No rule without an exception.

凡是规则，总有例外。

youdao

There is no general rule without some (an) exception.

有规则就有例外。

youdao

There is no general rule without some (an) exception.

有规则就有例外。

youdao