过去的二十年间发生了巨大的变化的翻译：Great changes have happened over the past 20 years 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

Undergone tremendous changes over the past two decades

Great changes have happened over the past 20 years

During 20 years the past have had the huge change

The past 20 years there has been an enormous change

Great changes have happened over the past 20 years