你长大之后干什么 用英语怎么说

what will you do when you grow up.

what would you do when you grow up?
其实还有很多说法，这个句子分两部分：
1 你将来想/要干什么？
what will you do ?
what kind of people you would like to be?
what would you like to do?
^……
2 当你长大后
when you are an adult
when you are grown
when you become a man(对男孩子)
……
看你怎么组合啦？

What will you wanna do when you grow up.
wanna（want to)必须存在．口语中WILL可省略！

What do you want to be when you grow up?