What are you up to?与What are you busy doing?

WHAT ARE YOU UP TO what are you up to? what are you up to What are you up to? What are you up to?与What are you busy doing? what are you up what have you been up to what are you up to?等于what are you doing? WHAT ARE YOU UP TO中文是什么意思? what are you up to this week? What are you up to today? What are you up to with that?What are you up to with that,then? WHAT ARE YOU UP “what are you up to ”和“what are you up for ”的区别是什么? what do you up to 和what are you up to 是一个意思吗? What are you going to do when you grow up What are you up to to later on today what you up to what you up to