回答：
1、Whats up？反问对方？
2、Not much just busy.没什么，就瞎忙。
3、You know, just life.你知道的，活着呗。
扩展资料
例句：
Just like drones before them, miniature satellites are beginning to fundamentally transform our conceptions of who gets to do what up above our heads.
就像之前的无人机一样，微型卫星开始从根本上改变了我们的观念：谁能在我们的头顶上做什么。
Stick up for what you believe.
你相信什么，就要捍卫它。
She's always on the phone, wanting to know what I've been up to.
她总是打电话，想知道我忙了些什么。
