swingback

例句：

1. 1.The hunter used a swingback to take down the deer.
   猎人使用回旋镖射中了鹿。
2. 2.The archer aimed carefully with his swingback arrow.
   弓箭手用回旋镖箭瞄准。
3. 3.The soldier fired his swingback gun at the enemy.
   士兵用回旋镖枪向敌人射击。