 |
| |||
| source de l'énergie non polluante | |||
| не загрязняющий среду: 7 phrases in 5 subjects |
| Ecology | 1 |
| Environment | 2 |
| General | 1 |
| Natural resourses and wildlife conservation | 2 |
| Technology | 1 |
|
| |||
| source de l'énergie non polluante | |||
| не загрязняющий среду: 7 phrases in 5 subjects |
| Ecology | 1 |
| Environment | 2 |
| General | 1 |
| Natural resourses and wildlife conservation | 2 |
| Technology | 1 |