假设你是红星中学高三学生李华。请根据以下四幅图的先后顺序，介绍你和家人在去年9月3日观看国庆阅兵活动的过程，并以“An Unforgettable Day”为题，给校刊“英语角”写一篇英文稿。
注意：
1.词数不少于60；
2.短文的开头已给出，不计入总词数。
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An Unforgettable Day
On September 3, a military parade was held to celebrate the 70th anniversary of the victory of World War II.
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