USCG

例句：

1. 1. The USCG is responsible for maritime safety and law enforcement in the United States.
   美国海岸警卫队负责在美国水域的海上安全和执法。
2. 2. The USCG has been involved in numerous rescue operations during natural disasters.
   美国海岸警卫队在自然灾害期间参与了多次救援行动。
3. 3. The USCG is a vital component of the U.S.maritime security system.
   美国海岸警卫队是美国海上安全体系的重要组成部分。