hard and fast

Push hard and fast. Aim for a rate of about one hundred compressions each minute.

使劲迅速的按压, 以每分钟大约100的挤压速度为目标.

This distinction isn't hard and fast.

这样的差别并非是一成不变的.

He did not hold with all these hard - and - fast restrictions.

他不赞成这些死板的限制.

It is impossible to lay down any hard and fast rules.

想要制定出任何不容更改的规则是不可能的.

No hard and fast line can be drawn between the two.

二者不能截然分开.

It is a hard and fast contract.

这是一项不能变动的契约.

We stuck hard and fast on the rocks in the middle of the river.

我们被阻滞在河当中的礁石上.

We must make it a hard and fast rule against smoking in the office.

我们必须严格规定:办公室里不准吸烟.

You can not lay down hard and fast rules.

你不能制定严格的规则.

Our factory has a hard and fast rule against smoking.

我们工厂严格规定不许吸烟.

He stuck hard and fast to his principles.

他严守自己的信条.

Push hard and fast.

用力快速挤压.

The teacher said that there was a hard - and - fast rule against smoking in school.

教师说学校有严格的禁止吸烟的规定.

There's no hard - and - fast rule.

并无定规.

You can't lay down hard and fast rules.

规则不能定得太严太死.