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- magic (4)
- frizzle, ms. (fictitious character) (3)
- schools (3)
- science (3)
- time travel (2)
- 科学知识 (2)
- adventure and adventurers (1)
- amazing science (1)
- antarctica (1)
- arctic regions (1)
- australia (1)
- bats (1)
- bears (1)
- bones (1)
- brothers and sisters (1)
- butterflies (1)
- cognitive science (1)
- computational learning theory (1)
- coral reefs and islands (1)
- dinosaurs (1)
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