They face surface-to-air threats as well as Red Air threats, which are provided by the Aggressors of the 18th Fighter Squadron from Eielson.是什么意思_They face surface-to-air threats as well as Red Air threats, which are provided by the Aggressors of the 18th Fighter Squadron from Eielson.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句