As an expert in cultural and social norms, I can provide you with an example of etiquette that is commonly recognized and practiced in various social settings.

Example in English:
One of the fundamental examples of etiquette is the practice of saying "please" and "thank you." These simple expressions of politeness are a basic part of good manners and are used to show respect and appreciation when making a request or acknowledging a service or kindness. They are considered essential in both formal and informal interactions.

Translation in Chinese:
作为文化和社会规范领域的专家，我可以为您提供一个在各种社交场合中普遍认可和实践的礼仪示例。

中文示例：
礼仪的一个基本例子是使用“请”和“谢谢”的实践。这些简单的礼貌表达是良好举止的基本部分，用于在提出请求或承认服务或善意时表达尊重和感激。它们在正式和非正式的互动中都被认为是必不可少的。

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noun. Etiquette is defined as the formal manners and rules that are followed in social or professional settings. The rules of writing a thank you note are an example of etiquette. YourDictionary definition and usage example.read more >>