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- glaciers (7)
- climatic changes (5)
- 冰川 (4)
- history (3)
- ice (3)
- 图画故事 (3)
- 研究 (3)
- earthquakes (2)
- ice sheets (2)
- pollution (2)
- tsunamis (2)
- volcanic eruptions (2)
- adelie penguin (1)
- air (1)
- andes region (1)
- anthropology (1)
- arctic regions (1)
- climatic factors (1)
- climatology (1)
- cold regions (1)
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