contoh kalimat filed off

• Serial number's been filed off.
  Nomor serial sudah diisikan.
• We found a 9mm with the serial numbers filed off near the body.
  Kami menemukan pistol 9mm Dengan nomer seri yang terdaftar Di dekat mayatnya.
• Let's not speak ill of the dead, Gabriel, but the serial number's been filed off.
  Jangan bicarakan hal buruk soal almarhum, Gabriel, tapi nomor serialnya sudah dihapus.