求翻译：首先，在英语方面，学习的内容多了，我常常记不住单词。其次，数学依旧是我的难题，听不懂 不能很好的理解他 并且老师讲的技巧不能很好的应用。最后，在学习历史和政治时总记不住他们准确的时间。是什么意思？

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First of all, in English, learning content, I used to remember the word. Second, the math still is my problem, can't understand well understood him and skills of the teacher wouldn't do a very good application. Finally, always remember them when studying history and political correct time.