St Petersburg has also been the centre of many important events in history.
圣·彼得堡在历史上也曾是很多重大事件的中心。
St Petersburg has also been the center of many important events in history.
圣彼得堡也是历史上许多重大事件的中心。
People often remember what they were doing when they heard the news of important events in history.
人们经常记得当他们听到历史上重要事件的新闻时他们正在做什么。
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