Attackers fired machine guns at the convoy.

袭击者们向护运车队开机枪。

《柯林斯英汉双解大词典》

They shot and shot at everything with their new guns.

他们用他们的新枪射击一切。

youdao

They fired (their guns) at [on, upon] the enemy.

他们向敌人开炮。

《新英汉大辞典》

At Fort Sumter, Major Robert Anderson and his men waited three hours before firing back at the Confederate guns.

VOA: special.2009.08.13

More than one hundred thirty of these big guns were aimed at the center of the Union line.

VOA: special.2009.11.05

Adding to the problem, poachers today are more skilled at killing rhinos, and not only with guns.

VOA: special.2009.12.14

Americans will never look at guns the way, say, the Dutch look at them.

CNN: How strong, really, is America?

Somehow we need to do a better job at keeping guns out of the hands of people with serious mental health problems.

FORBES: 'Halo 4' Won't Make Your Kids Violent: Why Parents Should Play Video Games With Their Kids

Many other state legislatures are debating gun laws in the wake of the Newtown killings, but not all of them are aimed at restricting guns.

CNN: Once-unlikely win for gun control in Colorado