我们已经看到了这些年发生在这个城市的巨大变化。的翻译：We have seen great changes that had taken place over the years in this city. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

We have already seen tremendous changes occurred in the city.

We have seen great changes that had taken place over the years in this city.

We already saw these years have occurred in this city huge change.

We have already seen these years occurred in the city of the great changes.

We have seen great changes that had taken place over the years in this city.