seki tankideshō
1. Probably the Carboniferous period.
Noun
#253743
1. Probably the Carboniferous period.
1. coal
1. Devonian period
1. it seems; I think
2. right?; don't you agree?
1. If coal; When coal
1. Was not coal.
1. It is not coal.
1. Coal; Of coal
1. Probably coal.
1. It was not coal.