-
Lower tracheophytes in existence since the devonian.
自从泥盆纪以来就生存的低等维管植物。
youdao
-
The end of the Devonian was a crucial time for vertebrates.
泥盆纪末期是脊椎动物出现很的关键时期。
youdao
-
The end of the Devonian was a crucial time for vertebrates.
泥盆纪末期是脊椎动物出现很的关键时期。
youdao