礼貌在英语作文中是一个重要的主题，下面是一个简洁的40词左右的作文示例：
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The Importance of Politeness
Politeness is a key element in social interactions. It not only shows respect and consideration for others but also reflects one's upbringing and education. Being polite is essential for creating a friendly and harmonious atmosphere. It is the foundation of good manners, which are the hallmark of a civilized society.
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这个作文简洁明了地阐述了礼貌的重要性，并强调了它在日常生活中的关键作用。