n.持枪者；枪手；持枪歹徒；职业杀手
The sight of the masked gunman made my blood freeze. 我一看见那个持枪的蒙面人就吓得浑身冰凉。
He gazed fearlessly at the gunman. 他毫不畏惧地注视着那枪手。
He dodged to left and right as the gunman opened fire. 持枪歹徒开火时他东躲西闪。
The gunman is holding two children hostage in the building. 持枪歹徒把两个孩子扣押在这座建筑物里当作人质。
