20世纪70年代末以来中国发生了巨大变化的翻译：In the late 1970 of the 20th century, great changes have taken place in China since 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 the late 1970s, China has undergone tremendous changes

In the late 1970 of the 20th century, great changes have taken place in China since

Since 20th century at the end of 70's China has had the huge change

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In the late 1970 of the 20th century, great changes have taken place in China since