求翻译：四、保持积极心态，快乐愉悦的复习。我们都知道，一个好的心态意味着什么，如果你今天心情很好，就好像什么事都特别顺心，什么事都很容易做成,我们也都身有体会，这不完全是心理作用，是一种态度，一种方法是什么意思？

Fourth, maintain a positive attitude, happiness and the pleasure of the review. We all know that a good state of mind what it means, If you're a good mood today, as if nothing special liking what are likely to cause our body has the experience, this is not entirely psychological effect, an attitude,

4, maintain a positive attitude, and happy happy review. We all know, a good attitude, and what it means to you today if you are very good, it's like anything in particular, what is it that these seniors are very easy to make, and we all realize that this was not exactly a psychological effect, it i

Fourth, maintenance positive point of view, joyful joyful review.We all knew that, a good point of view meant any, if you the mood very is today good, resembles any matter specially to be all satisfactory, any matter very is all easy to make, our also all body has the experience, this is incompletel

Four, to maintain a positive State of mind, happy review of pleasure. As we all know, what it means for a good frame of mind, if you are in a good mood today, like special goes well with everything, everything is very easy to make, we also have the experience, this is not entirely psychological, is

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