中文版：为[活动名称，比如：校园读书节]写一份海报文案。要有主标题、副标题、活动时间地点、亮点介绍、参与方式。语言简洁有力，适合[年级]学生和家长看。

英文版：Write poster copy for [event, e.g., campus reading festival]. Include main title, subtitle, time and place, highlights, and how to participate. Concise and impactful, suitable for [Grade] students and parents.

该提示词已在以下工具中验证有效：ChatGPT、Claude、豆包、Kimi、通义千问