| |||
| проблема загрязнений | |||
| |||
| проблемы загрязнения | |||
|
pollution problem : 4 phrases in 3 subjects |
| Economics | 1 |
| General | 1 |
| Makarov | 2 |
| |||
| проблема загрязнений | |||
| |||
| проблемы загрязнения | |||
|
pollution problem : 4 phrases in 3 subjects |
| Economics | 1 |
| General | 1 |
| Makarov | 2 |