Idiom
shoot down somethingshoot down (something)
1.
to destroy an aircraft or weapon in the sky by shooting it.
In the movie, he pulls out a portable rocket launcher and shoots down the helicopter.If we detect an incoming missile, we must be able to shoot it down.
2.
to refuse to accept something.
The baseball owners shot down a plan to add two more teams to each league.At a public meeting, residents shot down two different designs for rebuilding the area.