關於「Pre boarding announcement」標籤，搜尋引擎有相關的訊息討論：

Airline Announcements in English | English for Work - EnglishClubwww.englishclub.com › english-for-work › airline-announcements"Welcome to Singapore, ladies and... - Singapore Airlines | Facebookwww.facebook.com › singaporeair › posts › welcome-to-si...Pre-boarding Announcement