狙击手

例句：

1. 1. The sniper fired at the target from a distance of over a mile.
   狙击手从一英里多的距离向目标开火。
2. 2. The sniper was able to take out the enemy's command post without being detected.
   狙击手成功地在未被发现的情况下击毁了敌人的指挥所。
3. 3. The sniper had to move quickly to avoid detection by the enemy.
   狙击手必须迅速移动以避免被敌人发现。