hang的用法Scientists would like to place a huge mirror in space above the earth.It might be sixty miles wide.It would be used to catch the rays of the sun.It would direct the sun’s rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.Why do they want to do this?The sun’s rays could be helpful in many ways.They could light up cities by night.The warm rays could stop frosts which might come at night and hurt fruit c

hang的用法
Scientists would like to place a huge mirror in space above the earth.It might be sixty miles wide.It would be used to catch the rays of the sun.It would direct the sun’s rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.
Why do they want to do this?The sun’s rays could be helpful in many ways.They could light up cities by night.The warm rays could stop frosts which might come at night and hurt fruit crops.They could melt dangerous icebergs in the ocean.Perhaps they could hang cloud movements and bring rain where it is needed.注意最后一句里hang.怎样翻译最后一句.太空中装镜子又怎么控制雨呢?不懂