最近,世界对中国歼-20隐形战机首飞掀起热议,而真正的隐形飞机又是从什么时候开始的呢?在英语中,如果想描述一件十分不可能的事,就会说“当猪飞起来的时候,就会怎么怎么样”。二战结束后,刚刚发明的雷达仿佛一面照妖镜,将昔日 Recently, the world has set off a heated debate about the first flight of the Chinese F-20 stealth fighter plane. When did the real stealth aircraft begin? In English, if you want to describe an extremely unlikely event, you would say “ When the pigs fly, what happens? ” After the end of World War II, the radar just invented seems to be a mirror of demon, will be the past