There are no hard and fast rules.

当然这个是没有任何硬性规定的.

There are no hard and fast rules here.

本文无法提供硬性而快速的规则。

You can't lay down hard and fast rules.

规则不能定得太严太死。

There are no hard and fast rules about this.

关于这一点，没有什么硬性的规定。

There are no hard-and-fast rules for success.

通往成功没有什么一成不变的规则。

There are no hard and fast rules about the use of hyphens in English.

对于连字符号的使用，英语中没有严格的限制。

There are 5 main types, and there's no hard-and-fast rules about their functions.

脑电波有5种主要类型，它们的功能没有硬性规定。

There aren't a lot of hard and fast rules for entrepreneurs when it comes to hanging on to data.

在保存数据方面创业者没有多少硬性原则可供参考。

When it comes to love, there are no hard and fast rules though many people follow the age-old theory that opposites attract.

虽然许多人都遵循“相异相吸”这一老话，但情场上其实并没有铁的法则。 罜。

While there are no hard and fast rules about how to write cover letters there do are standard and generally accepted practices to write a notable cover letter.

虽然写求职信没有要严格遵守的规则，但一封拿得出手的求职信还是有些标准和套路的。