Scouts twenty billion miles out had detected the approach of a mighty fleet of the Outsiders.Those scouts had never come back, but their radiotronic messages had.是什么意思_Scouts twenty billion miles out had detected the approach of a mighty fleet of the Outsiders.Those scouts had never come back, but their radiotronic messages had.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句