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| English thesaurus | |||
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| VR | |||
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Volcano : 42 phrases in 12 subjects |
| Astronomy | 1 |
| Construction | 5 |
| Earth sciences | 17 |
| General | 7 |
| Geology | 3 |
| Life sciences | 1 |
| Mammals | 2 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 1 |
| Ornithology | 1 |
| Technology | 2 |
| Zoology | 1 |