FDR えふでぃうあうるです efudeiua urudesu 1. It is polite to say FDR. 敬 敬 Noun #318249 Open Menu Add to collection... Open
FDR えふ・でぃう・あうる efu·dii·āru 1. flight data recorder; FDR Noun #248444 Open Menu Add to collection... Open