求翻译：中华门，明代称聚宝门，为南京古城墙13个城门中规模最大的城堡式城门，是当今世界上保存最完好、结构最复杂的古城堡，被列为全国重点文物保护单位。是什么意思？

China Gate, Ming said the Treasure door, for the 13 gates the ancient city wall of Nanjing the largest castle-gate, is the world's best preserved and most complex of the ancient castle, is listed as national cultural heritage.

正在翻译，请等待...

The Chinese gate, the bright synonym gathers the valuable gate, for the Nanjing ancient city wall 13 city gates in the scale biggest castle type city gate, in the world preserves complete, the structure most complex ancient castle now, is listed as the nation key cultural relic preservation organ.

China gate, called treasure of Ming dynasty, in 13 city gates of ancient city wall of Nanjing's biggest Castle gates, is the world's best preserved, most complex guchengbao, is listed as a national key cultural relic protection units.

China gate, called treasure of Ming dynasty, in 13 city gates of ancient city wall of Nanjing's biggest Castle gates, is the world's best preserved, most complex guchengbao, is listed as a national key cultural relic protection units.