假如你是发明家,你会发明什么?为什么发明,有什么作用.英语作文,

If I were a inventor
If I am the inventor, I have invented an automatic water machine, as long as put a small amount of water, you can pour out many water, so that people wouldn't be water shortage in arid regions.
如果我是一个发明家
　　如果我是发明家,我发明了一种自动饮水机,只要放少量的水,就可以流出很多水,这样干旱地区的人们就不会缺水了