But that's not a hard and fast rule.

但这并不是硬性规定。

youdao

There is no hard and fast rule here, and every application will differ somewhat.

这里没有一尘不变的规则，所有的应用程序都会有点不同。

youdao

There is no hard and fast rule on how a life handbook should be; it is up to your preference.

人生指南手册应该怎么样，这个没有硬性规定；它取决于你的喜好。

youdao

"There's no hard and fast rule on whether age differences sink the love boat, " Singleton wrote.

CNN: Cougars in training: Young women dating even younger men

There is no hard and fast rule about how often and how long one must engage in self-affirmation for it to work.

CNN: Boost your capacity to cope

While there is no hard and fast rule, investors should look favorably upon companies that hedge at least 30% of their expected annual fuel usage.

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