几何数列 angolul

geometric progression [geometric progressions]▼(sequence)
noun
[UK: ˌdʒɪə.ˈme.trɪk prə.ˈɡreʃ.n̩] [US: ˌdʒiə.ˈme.trɪk prə.ˈɡreʃ.n̩]