 |
| |||
| качество воды | |||
| Wasserqualität: 7 phrases in 4 subjects |
| Hygiene | 1 |
| Medical | 4 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 1 |
|
| |||
| качество воды | |||
| Wasserqualität: 7 phrases in 4 subjects |
| Hygiene | 1 |
| Medical | 4 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 1 |