我的理想是长大了当一名医生，因为医生能医治好多的病人，会让生病的人们健康快乐起来，那样我也会很高兴的。
My ideal is to be a doctor when I grow up, because doctors can treat many patients, and make the sick people healthy and happy, so I will be very happy.
爸爸妈妈说，要想当一名医生，就要从现在起好好的学习，只有学习好了，长大后才能成为一名合格的医生，所以，为了实现我的理想，从今天开始，我要好好的学习。
Mom and dad said that if you want to be a doctor, you need to study hard from now on. Only when you have studied well, can you become a qualified doctor when you grow up. So, in order to realize my ideal, I need to study hard from today on.