Semi-automatic firearm

• 半自动火器

Semi-automatic firearm的用法和样例：

例句

1. It is illegal to discharge a firearm from a public highway.
   从公路发射火器是违法的。
2. Call is accused of possessing an unregistered machine gun, as well as parts designed to convert manual firearms into automatic weapons.
   烤鹅先生被控拥有未注册的机关枪，及用于将手动火器改造成自动武器的材料。