只用了半个多世纪，每个家庭的生活都发生了显著的改善。

More than half a century, each family life improved significantly.

youdao

在过去的半个多世纪里，中国经济多次出现大起大落。

In the past half century, the main problem of China economy is unsteadiness.

youdao

在过去的半个多世纪里，中国经济多次出现大起大落。

In the past half century, the main problem of China economy is unsteadiness.

youdao