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As far as a class is concerned, there should be only one reason for it to change. If a class assumes too many responsibilities, it is tantamount to coupling these responsibilities together. Changes in one responsibility may affect other responsibilities. In addition, coupling multiple responsibilities together will also affect reusability.Analysis, on the other hand, is to conduct a more detailed study of the contents of a class and find their subtle and accurate differences so as to have a deeper understanding of things. It is a comprehensive ability to see that some of them have more connections and more common points from the numerous and complicated large number of things, so that they can be summed up together to make the large number of things that were originally scattered form systems and categories.一位志愿者老师在一次不幸的事故中丧生，她的心脏被移植给Tian。通过一系列的日记，Tian知道了她的生活、秘密和兴趣。包括她对Phupha军官的一起数一千颗星星的承诺。Tian决定跟随她的脚步并完成她的梦想。成为一名新的志愿者老师的Tian，想和Phupha交朋友。但是，Phupha散发出一个冰冷的外表。慢慢地两个人渐渐靠近，但是Tian的心脏在军官旁边时就跳得很快。当他开始爱上他时，就像以前心脏已故的主人一样。但是，在这个充满战争和危险的地区，他们能够兑现数一千颗星星的承诺吗？呃？这个……樊哙很是诧异。Drug name: Aloe