Do you mean why these three phrases all containing a"起来” while they are of different meanings? “起来” can be used as a verb,but sometimes you can also use it as a directional verb,which just follows a verb. To be specific,it can be divided into three aspects, 1.[stand up] 你站起来 You stand up. 2.[get up]∶起床 我起来了=我起床了 I wake up 3.follow a verb 拿起来书=pick up the book 听起来=sound 闻起来=smell 看起来=seem You can also regard it as a symbol of showing a thing has done or one has achieved his goal Hope this helps/