1978年以来中国发生了巨大的变化的翻译：Great changes have taken place in China since 1978 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

Since 1978 China has undergone tremendous changes

Great changes have taken place in China since 1978

Since 1978 China has had the huge change

Since 1978 China has undergone enormous changes

Great changes have taken place in China since 1978