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| природная стихия (Fire was described in ancient Greece as one of Earth’s ‘natural elements’ alongside water, air and earth. Гевар) | |||
| естественный элемент | |||
| природный элемент | |||
| природный химический элемент | |||
| natural element: 3 do fraz, 3 tematyki |
| Elektronika | 1 |
| Fizyka jądrowa | 1 |
| Matematyka | 1 |