Attention: UN001 mechanical problem, estimated time of departure (ETD) is delayed until 16:30. I say again, UN001 mechanical problem, estimated time of departure (ETD) is delayed until 16:30.是什么意思_Attention: UN001 mechanical problem, estimated time of departure (ETD) is delayed until 16:30. I say again, UN001 mechanical problem, estimated time of departure (ETD) is delayed until 16:30.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句