 |
| diffuse light: 6 phrases in 6 subjects |
| Astronomy | 1 |
| Construction | 1 |
| Makarov | 1 |
| Mass media | 1 |
| Mathematics | 1 |
| Natural resourses and wildlife conservation | 1 |
|
| diffuse light: 6 phrases in 6 subjects |
| Astronomy | 1 |
| Construction | 1 |
| Makarov | 1 |
| Mass media | 1 |
| Mathematics | 1 |
| Natural resourses and wildlife conservation | 1 |