四、英文作文：（40 分） Write a composition in which you discuss one of the values by which you live. Explain why you believe in this value and how it works for you. Suggested length: 150-300 words, organized in three or four paragraphs. 說明：請針對以上題目寫一篇文長 150-300 個字的英文作文，聚焦描述一項你人生的信念或價值觀。建議文章分為三至四個段落，首段為引言，中間段落為討論，末段為結論。