I want to be a businessman when I grow up.
Becasue I think as a businessman in the future can make a lot of money,I will use more money to buy a big house for my parents,I want to spent their remainying years in comfort.
Also,I believe that as a good businessman must be clever and wide and profound in learning.So,I want to be a businessman when I grow up.
简单的就不翻译了,主要的短语有：
spend one's remainying years in comport
安度晚年
wide and profound in learning
学问渊博