The crew try every means available to them to prevent the fight, but nothing works.

And we have the means to prevent you from defending yourself.

Do they have the means and power to prevent it, even if they want to?

A mechanical means prevents the rotor from starting in the wrong direction.

I would very soon find means to prevent you.

While death rates remained high there was no question as to the need for children, even if the means to prevent them had existed.

"We would be entitled to use all legal means to prevent that money reaching terrorists," he said.

Now fortunately we have the means to prevent this dreadful disease being passed from mother to child.

But we must have the means to prevent it.

Would it not, even as a matter of economy, befar better to adopt means to prevent their becoming poor?