这事没有什么硬性的规定。

There are no hard and fast rules about this.

《牛津词典》

这些并不是什么你必须使用的硬性的规定。

These are not hard and fast rules that you must use.

youdao

当然这个是没有任何硬性规定的。

There are no hard and fast rules.

youdao

起初，规定是硬性严格的。

Originally, they were very rigid about this.

youdao

起初，规定是硬性严格的。

Originally, they were very rigid about this.

youdao