 |
| |||
| maintenance of environment; maintenance of environmental quality | |||
| сохранение качества окружающей среды: 8 phrases in 4 subjects |
| Diplomacy | 1 |
| Ecology | 5 |
| Makarov | 1 |
| Technology | 1 |
|
| |||
| maintenance of environment; maintenance of environmental quality | |||
| сохранение качества окружающей среды: 8 phrases in 4 subjects |
| Diplomacy | 1 |
| Ecology | 5 |
| Makarov | 1 |
| Technology | 1 |