NTSB

例句：

1. 1. The NTSB has been investigating the cause of the crash for months.
   国家运输安全委员会已经调查了这起事故的原因数月。
2. 2. The NTSB is responsible for ensuring the safety of all air travelers.
   国家运输安全委员会负责确保所有空中旅客的安全。
3. 3. The NTSB issued a report on the cause of the accident, which was later confirmed by the manufacturer.
   国家运输安全委员会发布了关于事故原因的报告，该报告后来被制造商确认。