英语翻译主题（meaning）就是你写一篇文章前后所要表达的中心思想,你想说明的是什么.如果主题不明确,读者将不明白你写

Theme is the central idea you are trying to express through your essay, the point you are explaining。 If the theme is unclear, then the readers will not understand the meaning of your essay, and it will become vague and confusing。
Perfect grammar can help make your essay more fluent, and understandable, others will not understand an essay with imperfect grammar and might get the wrong impression。
自翻