It takes sb. some time to do sth.
　　某人花了……时间做某事
　　普通句：It takes me a long time.
　　我花了好长时间。
　　次级高手句：It takes me quite a long time.
　　我花了相当长的时间。
　　高手句： It takes me quite a long time to understand.
　　我花了相当长的时间来理解。
　　超级高手句： It takes me quite a long time to understand the meaning of the painting.
　　我花了相当长的时间才理解那幅油画的意义。
　　专家句： It takes me quite a long time to understand the meaning of the painting of Picasso.
　　我花了相当长的时间才理解毕加索的那幅油画的意义。