一篇半分钟左右的英语演讲稿，题目是《my dream》先告诉大家我的梦想是当医生，请围绕这个写，不用太长 急

I want to be a doctor ,because I think if i am a doctor I can help sick people and help yong child if they have tuouble . and many people want to be a doctor I think wolrd can be better and better. what do you think .people usually want to be healthy and