n. a portable gun
n. 火器, 枪炮
1. A firearm must be handled with care and respect.
火器必须小心和尊重地处理。
2. In many countries, owning a firearm requires a special license.
在许多国家,拥有火器需要特别许可证。
3. The police found a firearm at the scene of the crime.
警方在犯罪现场发现了一支火器。