Turn left heading 135, descend to 4500 feet and join down wind leg. No delay( Do not delay) for ILS R/W31.是什么意思_Turn left heading 135, descend to 4500 feet and join down wind leg. No delay( Do not delay) for ILS R/W31.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句