As an airline pilot, he helped develop an air-safety course and served as an investigator at crash sites.

他后来成为了一名民航飞行员，萨伦·伯格协助编制航空安全课程，出任坠机现场的调查人员。

youdao

As an airline pilot, he helped develop an air-safety course and served as an investigator at crash sites.

他后来成为了一名民航飞行员，萨伦·伯格协助编制航空安全课程，出任坠机现场的调查人员。

youdao