Carpets have the effect of a dust pocket, with merit of sucking up dust and stopping it flying around, but you can say that effect backfires

It's the prevention of migraines during daily life that's important, not dealing with migraines when they occur

In short some guns have excellent security systems to prevent accidental firing (e.g. when dropped), others don't

This chemical will prevent germs from breeding

There's also the danger of unexploded bombs, so they reported it to the police and the area was taped off to keep people out

The Department of Homeland Security's primary function is the prevention of terrorist attacks occurring within America and, in the extreme case of an attack happening, holding losses to the smallest possible level and swiftly carrying out restoration

To my knowledge, this chemical will prevent germs from breeding

Just how well can masks block the, even smaller than pollen, yellow sand dust? I think it much more of a nuisance than pollen

The checked player must find a way for the king to escape and block the check

His prompt action prevented an epidemic

We must prevent a war by all possible means

If he had been a little more careful, the accident would have been avoided

We must prevent war at any cost