以下是一份可能的英语考试88分后的检讨书示例：

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Dear Teacher,

I am writing to express my sincere regret and to offer a detailed reflection on my recent English exam performance, where I scored 88 out of a possible 100 points. I understand that this is not the level of achievement I am accustomed to, and I believe it is important to acknowledge the areas where I fell short and to commit to improving in the future.

Firstly, I would like to apologize for not meeting the expectations set by our course curriculum. I recognize that my 88% score is still a commendable effort, but it is not up to the standard I strive for. Here are the key areas where I believe I need to improve:

1. Preparation: I acknowledge that my preparation for the exam was not as thorough as it should have been. I often found myself rushing through my study sessions, which resulted in a lack of depth in my understanding of the material.

2. Time Management: During the exam, I struggled with time management. There were questions that I spent too much time on, which caused me to rush through others. This inefficiency impacted my overall score.

3. Vocabulary: My vocabulary usage could have been more diverse and precise. I realize that expanding my vocabulary is crucial for expressing myself more effectively in English.

4. Grammar: While I have a solid grasp of grammar, there were instances where my usage was not perfect. I need to review and practice grammar rules more consistently.

5. Reading Comprehension: My reading skills could have been sharper. I need to work on my ability to quickly and accurately grasp the main ideas and nuances of the texts I read.

To address these issues, I have outlined the following steps:

Increase Study Time: I will allocate specific times each day for studying and ensure that I am fully focused during these sessions.

Effective Study Techniques: I will employ effective study techniques such as flashcards for vocabulary and practice exercises for grammar.

Mock Exams: I will take regular mock exams to practice time management and to become more comfortable with the exam format.

Vocabulary Building: I will read more extensively in English and use vocabulary-building apps to expand my word bank.

Grammar Review: I will review grammar rules regularly and practice constructing sentences that adhere to these rules.

I am committed to working diligently on these areas and to improving my performance in future assessments. I believe that with consistent effort and the right strategies, I can achieve the high standards I set for myself.

Once again, I apologize for not meeting the expectations of this exam. I appreciate your guidance and support as I work to improve my English skills.

Sincerely,

[Your Name]

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记得根据你的实际情况调整检讨书的内容，使其更加真实和个性化。