BDU

例句：

1. 1. He was shot in the leg by a BDU.
   他被一颗子弹击中了腿。
2. 2. The soldier had to reload his BDU.
   这名士兵不得不重新装填他的子弹。
3. 3. The BDUs were used for hunting and target practice.
   这些子弹被用于狩猎和实弹训练。