joint chiefs of staff

例句：

1. 1. The JCS is responsible for planning and executing military operations.
   联合参谋长负责规划和执行军事行动。
2. 2.The JCS has been criticized for its lack of transparency in decision-making processes.
   联合参谋长因其决策过程缺乏透明度而受到批评。
3. 3.The JCS has been working closely with other military leaders to coordinate efforts on a global scale.
   联合参谋长与其他军事领导人紧密合作，在全球范围内协调努力。