"在过去的中国"和"在今天的中国"分别都有哪些表达

在过去的中国
in the old days
post Chinese civil war era (after 1949)
in the old China

今天的中国
Modern day China
China Today

in the past of China
today of China

在过去的中国
in the old China

在今天的中国
in the modern China

in ancient China / in the old China / in the old days
in modern/present China / nowadays in China

在过去的中国: In old China; In the past of China; In China xx years ago.

在今天的中国: In today's China; In present China; In China today; Now in China.

in the China that it used to be,
in the China today