America has responded by saying that the missile-defense system is not intended to defend against a Russian arsenal, but against a potential attack from Iran or a rogue threat.是什么意思_America has responded by saying that the missile-defense system is not intended to defend against a Russian arsenal, but against a potential attack from Iran or a rogue threat.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句