what are you doing this for?这句话怎么分析?

问题描述:

what are you doing this for?
这句话怎么分析?

等同于
WHY ARE YOU DOING THIS? 你为了什么这么做?

你做这件事是为了什么?

for ,为了啥,或者是因为啥
what are you doing this 你作这个
for 为了?
肯定句:You are doing this for what?