Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
사무장은 비행기에서 승객의 안전을 책임진다.samujang-eun bihaeng-gi-eseo seunggaeg-ui anjeon-eul chaegimjinda.The purser is responsible for the safety of passengers on the plane.