地球上的任何一个事物都要在一个特定的时期内经历发源期、成长期和衰亡期。

Everything on earth has its origin, growth and decay in a particular period of time.

youdao

地球上的任何一个事物都要在一个特定的时期内经历发源期、成长期和衰亡期。

Everything on earth has its origin, growth and decay in a particular period of time.

youdao