According to my personal experience, smile has done me a lot of good.
例︰根据我个人经验微笑已带给我许多好处。
According to my personal experience,... Based on my personal experience,?
根据我个人经验？
According to my personal experience, smile hsimilar tone me rather a lot of good.
遵照我个人经历?含笑已带给我许多利益。
According to my personal experience, smile contributes to building a harmonious society.
根据我个人经验，微笑有助于建立和谐的社会关系。
According to my personal experience, friends bring me not only trust, understanding, but also warmth.
根据我个人经验来说，朋友带给我的不仅仅是信任，理解，还有温暖。
According to my personal experience I will choose a few important and necessary topics to discuss in the class.
根据我个人经验我将选取几个重要且必备的话题与大家讨论。
According to my personal experience, short of water supply is much more terrible than blackout, as long as not blackout for a long time.
根据我的亲身体会停水比停电更可怕，只要不是长时间的停电。
One more important point: According to my personal experience of the past eighty years or so, one should put his brain to frequent use instead of letting it stay idle.
我现在还想补充一点，很重要的一点。根据我个人七八十年的经验，一个人决不能让自己的脑筋投闲置散，要经常让脑筋活动着。
This essay is a study and solutions according to one of above mentioned problems though my personal experience, and knowledge I... learned from the textbooks, and other resources in all media.
这篇论文就是针对其中的问题进行一些探讨研究，通过我的实习体会，结合我在书本上学到的知识，参考的各类文献，再对各种问题提出解决方案。
This essay is a study and solutions according to one of above mentioned problems though my personal experience, and knowledge I... learned from the textbooks, and other resources in all media.
这篇论文就是针对其中的问题进行一些探讨研究，通过我的实习体会，结合我在书本上学到的知识，参考的各类文献，再对各种问题提出解决方案。
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