假设你是红星中学2014～2015学年高二（1）班的学生李华，请根据以下四幅图的先后顺序，为校刊“英语园地”写一篇短文，记述寒假期间你在中国国家博物馆做志愿讲解员的经历。
注意：1．词数不少于60。
2．短文的开头已给出，不计入总词数。

During this winter vacation, I worked as a volunteer guide in the National Museum of China.
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