改革开放以来我们国家发生了巨大的变化的翻译：Great changes have taken place in our country since reform and opening 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

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Great changes have taken place in our country since reform and opening

Since the reform and open policy our country has had the huge change

Since the beginning of reform and opening up our country has undergone tremendous changes

Great changes have taken place in our country since reform and opening