求翻译：圣马可广场在历史上一直是威尼斯的政治、宗教和节庆中心，是威尼斯所有重要政府机构的所在地，自从19世纪以来是大主教的驻地，它同时也是许多威尼斯节庆选择的举办地。是什么意思？

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St. Mark's Square in Venice throughout history has been the political, religious and cultural festivals, the Venice Center all important governmental institutions, since the location since 19 century Archbishop is the resident, which is at the same time many Venetian festivals organized by choice.

The saint Mark square in the history always is Venice's politics, the religion and the festival celebrates the center, is the Venice all important government apparatus locus, since the 19th century has been archbishop's station, it simultaneously also is many Venice festivals celebrates the choice h

Saint's square in history has been the center of political, religious, and festivals in Venice, are all important government institutions in Venice where, since the 19th century was the Archbishop of the resident coordinator, it is the choice of many festivals in Venice host.