求翻译：From then, I was engaged in long distance education. During my TV university, I exerted myself to learn my all kinds of web-based courses through internet. To understand and grasp the main point of my courses, I also joined online discusses forums to communicate with teachers and classmates. Once finishing daily homework ,we all sent our homework to tutor by e-mail. When I met any doubts in my studying, I solved the difficulties and puzzles in tutorial.是什么意思？

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