What would prevent her from putting these together and coming to know a priori that the world contains water?

The goal for the gardener then is to prevent plants from putting all their strength into developing seed.

I wonder what prevents any country from putting limits on tourism activities.

Suspensions, not injuries, prevented them from putting their best team on the floor.

Her eyes asked a question which the presence of the maid prevented her from putting into words.

"What's to prevent me from launching an air strike right now, against Government House, and putting an end to your little game?"

And to get it back, to prevent them from putting any of it to use.

They tried to prevent him from putting items on the calendar.

He jumped back, which was good, because it prevented her from putting her arms around him.

This prevents people from putting the stickers on their other cars.