sūokunen
1. several hundred million years
★ Common
Noun
#158501
1. several hundred million years
1. Billions of years old; Of billions of years
1. Millions of years in; Millions of years to
1. Billions of years.
1. Was billions of years.
1. Wasn't hundreds of millions of years.
1. Not hundreds of millions of years.; Not for hundreds of millions of years.
1. Not hundreds of millions of years.; It isn't hundreds of millions of years.
1. If billions of years.; When billions of years have passed.
1. Not hundreds of millions of years.; It's not hundreds of millions of years.