Word
HSK | Not in HSK |
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FREQUENCY | Unknown |
古生代 gǔ shēng dài
DEFINITIONS
- Paleozoic, geological era 545-250m years ago, covering Cambrian 寒武紀|寒武纪, Ordovician 奧陶紀|奥陶纪, Silurian 志留紀|志留纪, Devonian 泥盆紀|泥盆纪, Carboniferous 石炭紀|石炭纪, Permian 二疊紀|二叠纪
HSK | Not in HSK |
---|---|
FREQUENCY | Unknown |