It has been over 100 years since the very first plane, invented by the Wright Brothers, flew into the sky. The first plane, which was made of wood, had only been able to fly for 12 seconds in the air, but it opened the door of the aviation world. I wonder how the Wright brothers would imagine such a magnificent idea. They must have some kind of dream----human beings like birds, flying freely in space----they attempted various kinds of material to make planes, finally making their dream come true, although only a short 12 seconds for the first flight! We students often have different dreams: to be scientists, engineers, doctors, etc. Like the Wright brothers when they were young, we should try our best to experience different things, for example, going out of doors to watch different animals, watching butterflies in the air, or watching fish in the water. With more knowledge in these fields, we can become biologists in the future. Generally speaking, we d better make greater efforts in our studies. In this way, we can make our dreams come true, not only like the Wright brothers in the sky, but also like Yang Liwei in outer space.