在撰写一篇关于高中英语的结尾时，你可以总结全文内容，强调学习英语的重要性，并提出一些建议或鼓励的话语。以下是一个示例：

In conclusion, high school is a crucial period for mastering English. Not only does it lay the foundation for future academic and professional success, but it also opens up a world of opportunities for personal growth and global communication. To improve your English skills, practice regularly, seek help from teachers and peers, and embrace every opportunity to use the language. Remember, with dedication and perseverance, you can achieve your goals and become proficient in English. Keep striving and never give up!