61.  It really surprised me that Jack could play this kind of music instrument terrifically.

62.  But the more people I contact , the more invalid I find this method is.

63.  It really surprised me that Jack could play this kind of music instrument terrifically.

64.  But the more people I contact , the more invalid I find this method is.

65.  It really surprised me that Jack could play this kind of music instrument terrifically.

66.  But the more people I contact , the more invalid I find this method is.

67.  It really surprised me that Jack could play this kind of music instrument terrifically.

68.  I formed this thought at the beginning and gave up soon.

69.  The humanities can't bring this sense.

70.  I have never have the sense when I think of some questions like - Why did Li Bai use this metaphor to describe this thing?