题目

帮我用英语概括文章..
A pilot noticed a balloon which seemed to be making for a Royal Air Force Station nearby.He informed the station at once,but no one there was able to explain the mystery.The officer in the control tower was very angry when he heard the news,because balloons can be a great danger to aircraft.He said that someone might be spying on the station and the pilot was ordered to keep track of the strange object.The pilot managed to circle the balloon for some time.He could make out three men in a basket under it and one of them was holding a pair of binoculars.When the balloon was over the station,the pilot saw one of the men taking photographs.Soon afterwards,the balloon began to descend and it landed near an airfield.The police were called in,but they could not arrest anyone,for the basket contained two Members of Parliament and the Commanding Officer of the station!As the Commanding Officer explained later,one half of the station did not know what the other half was doing!提问时间：2020-07-26

答案

The pilot found a dangerous balloon and the police found there were important people,so them cannot be seized .
飞行员发现一个危险的热气球,警察发现里面是重要的人,所以不能逮捕他们.