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1.federal holiday 联邦假日
例句：Memorial Day was declared a federal holiday in1971.
阵亡将士纪念日被宣布为联邦节日于1971年。
2.made up of 由…组成
例句：Speech is made up of sound waves that vary in frequency and intensity.
语音是由不同频率和强度的声波组成的。
3.take place 发生
例句：A total solar eclipse is due to take place some time tomorrow.
明天某个时刻会发生日全食。
4.all around the world 全世界
例句：There were television crews and pressmen from all around the world.
来自世界各地的电视工作者和新闻记者齐聚一堂。
