求翻译：我学习一直挺刻苦的，但是以前英语老是提不高。经过我不断的努力，一直还是没有看见多大的效果，我有时候就挺郁闷的，这是为什么呢，经过我几年的研究和思考，终于研制出了一套学习英语的窍门。是什么意思？

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I learned a very hard, but English is not always mentioned. After my constant efforts, it still doesn't see that one has been how much of the effect, sometimes I just really depressed, this is why, after several years of research I think, and they have finally developed a set of learning English.

I study very assiduously continuously, but beforehand English always raises not high.After my unceasing endeavor, continuously does not have the visible big effect, I sometimes very melancholy, why is this, passes through I several years research and the ponder, finally developed a set of study Engl

I worked has been very hard, but you've always in English is not high. After my continuous effort, has still not seeing much of an effect, I got pretty depressed when the, this is why, after I did a few years of study and reflection, and finally developed a set of tips for learning English.

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